Most recent 40 articles: Real Climate
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“Don’t Look Up” - Real Climate (Jan 01, 2022) |
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Jan 01, 2022 · Climate science from climate scientists...
1 Jan 2022 by Gavin 3 Comments
The highlight of the movie season for climate science has clearly been the release on Dec 24th 2021 of “Don’t Look Up”. While nominally about a different kind of disaster – the discovery of a comet heading to Earth on a collision course – the skewering of our current science-policy dysfunction transcends the specifics and makes a powerful metaphor for climate change, and even the ongoing COVID-19 pandemic.
There have been a number of good reviews and discussions (and some bad ones) about the movie, from the discussion of the excellent science advising from Amy ... Read more ...
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Making predictions with the CMIP6 ensemble - Real Climate (Dec 03, 2021) |
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Dec 03, 2021 · Climate science from climate scientists...
1 Dec 2021 by Gavin 23 Comments
The CMIP6 multi-model ensemble is a unique resource with input from scientists and modeling groups from around the world. [CMIP stands for the Coupled Model Intercomparison Project, and it is now in its 6th Phase]. But as we’ve discussed before (#NotAllModels) there are some specific issues that require users to be cautious in making predictions. Fortunately, there are useful ‘best practices’ that can help avoid the worst pitfalls.
A new paper by McCrystall et al that has just appeared in Nature Communications illustrates these issues clearly by having some excellent ... Read more ...
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Net Zero/Not Zero - Real Climate (Nov 20, 2021) |
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Nov 20, 2021 · Climate science from climate scientists...
At the COP26 gathering last week much of the discussion related to “Net-Zero” goals. This concept derives from important physical science results highlighted in the Special Report on 1.5ºC and more thoroughly in the last IPCC report that future warming is tied to future emissions, and that warming will effectively cease only once anthropogenic CO2 emissions are balanced by anthropogenic CO2 removals. But some activists have (rightly) pointed out that large-scale CO2 removals are as yet untested, and so reliance on them to any significant extent to balance out emissions is akin not really committing to net zero at all. ... Read more ...
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rasmus - Real Climate (Oct 27, 2021) |
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rasmus - Real Climate (Oct 27, 2021) |
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Oct 27, 2021 · Climate science from climate scientists...
All countries in the world urgently need to adapt to climate change but are not yet in a good position to do so. It’s urgent because we are not even adapted to the present climate. This fact is underscored by recent weather-related calamities, such as flooding in Central Europe and heatwaves over North America. It’s also urgent because the oceans act like a flywheel, making sure that cuts in emission of greenhouse gases will have a lagged effect on global warming.
Climate change adaptation was addressed in the Paris Agreement from 2015, the Climate Adaptation Summit in January 2021, and will be one of four key priorities ... Read more ...
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Gavin - Real Climate (Oct 22, 2021) |
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Gavin - Real Climate (Oct 22, 2021) |
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Oct 22, 2021 · Climate science from climate scientists...
As many of you will know, Geert Jan van Oldenborgh died on Oct 12, 2021, and in the last week a number of very touching tributes have appeared. Notably, a lovely obituary in the NY Times by Henry Fountain, a segment on the BBC’s Inside Science from Roland Pease, a piece on Bloomberg News by Eric Roston and, of course, an appreciation from his colleagues at World Weather Attribution (including Friederike Otto, the co-recipient of the TIME 100 award to Geert earlier this year).
Geert’s work had been featured often at RealClimate (notably the rapid attribution work for the Pacific North West heat wave earlier this ... Read more ...
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Gavin - Real Climate (Sep 19, 2021) |
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Gavin - Real Climate (Sep 19, 2021) |
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Sep 19, 2021 · Climate science from climate scientists...
There is a new push to reduce CH4 emissions as a possible quick ‘win-win’ for climate and air quality. To be clear this is an eminently sensible idea – as it has been for decades (remember the ‘Methane-to-markets’ initiative from the early 2000s?), but it inevitably brings forth a mish-mash of half-remembered, inappropriate or out-of-date comparisons between the impacts of carbon dioxide and methane. So this is an attempt to put all of that in context and provide a hopefully comprehensive guide to how, when, and why to properly compare the two greenhouse gases.
Historical comparisons
First of ... Read more ...
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Worldwide glacier retreat - Real Climate (Sep 09, 2021) |
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Sep 09, 2021 · Climate science from climate scientists...
18 Mar 2005 by eric
One of the most visually compelling examples of recent climate change is the retreat of glaciers in mountain regions. In the U.S. this is perhaps most famously observed in Glacier National Park, where the terminus of glaciers have retreated by several kilometers in the past century, and could be gone before the next century (see e.g. the USGS web site, here, and here). In Europe, where there is abundant historical information (in the form of paintings, photographs, as well as more formal record-keeping), retreat has been virtually monotonic since the mid 19th century (see e.g. images of the glaciers at ... Read more ...
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AR6 of the best - Real Climate (Aug 13, 2021) |
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Aug 13, 2021 · Climate science from climate scientists...
9 Aug 2021 by Gavin
Half a dozen takeaways from a first read of the new IPCC AR6 report.
As climate scientists we tend to look at the IPCC reports a little differently than the general public might. Here are a few things that mark this report out from previous versions that relate to issues we’ve discussed here before:
There are other things that will get the headlines (the expected time before we get to 1.5ºC or 2ºC, the headline SLR numbers, the ‘unprecedented rate’ statement, constraints on climate sensitivity, carbon cycle feedbacks, the implications for the carbon budgets etc.), and other ... Read more ...
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Sea level in the IPCC 6th assessment report (AR6) - Real Climate (Aug 13, 2021) |
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Aug 13, 2021 · Climate science from climate scientists...
My top 3 impressions up-front:
And here is the key sea-level graphic from the Summary for Policy Makers:
This is a pretty clear illustration of how sea level starts to rise slowly; but in the long run, sea-level rise caused by fossil-fuel burning and deforestation in our generation could literally go off the chart and inundate many coastal cities and wipe entire island nations off the map. But first things first.
Observed Past Rise
Let’s dive a little deeper into the full report and start with the observed sea level change. Since 1901 sea level has risen by 20 cm, a rise unprecedented in at least 3,000 years ... Read more ...
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A deep dive into the IPCC’s updated carbon budget numbers - Real Climate (Aug 12, 2021) |
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Aug 12, 2021 · Climate science from climate scientists...
Guest post by Joeri Rogelj (Twitter: @joerirogelj)
Since temperature targets became international climate goals, we have been trying to understand and quantify the implications for our global emissions. Carbon budgets play an important role in this translation.
Carbon budgets tell us how much CO2 we can emit while keeping warming below specific limits. We can estimate the total carbon budget consistent with staying below a given temperature limit. If we subtract the CO2 emissions that we emitted over the past two centuries, we get an estimate of the remaining carbon budget.
I have been involved in the estimation of ... Read more ...
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Deciphering the 'SPM AR6 WG1’ code - Real Climate (Aug 12, 2021) |
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Aug 12, 2021 · Climate science from climate scientists...
I followed with great interest the launch of the sixth assessment report Working Group 1 (The Physical Science Basis) from the Intergovernmental Panel on Climate Change (IPCC) on August 9th.
The main report is quite impressive (see earlier posts here, here, here, and here) but the press conference didn’t come across as being focused and well-prepared. In my opinion the press conference on 9 August 2021 didn’t do justice to the vast effort that went into it.
I was nevertheless pleased to see a great improvement from last time, which is that the full report ('AR6’) was made available by the time of the launch of the summary ... Read more ...
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#NotAllModels - Real Climate (Aug 10, 2021) |
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Aug 10, 2021 · Climate science from climate scientists...
9 Aug 2021 by Gavin
The biggest contribution scientists can make to #scicomm related to the newly released IPCC Sixth Assessment report, is to stop talking about the multi-model mean.
We’ve discussed the issues in the CMIP6 multi-model ensemble many times over the last couple of years – for instance here and here. There are two slightly contradictory features of this ensemble that feature in the new IPCC report – first is the increase in skill seen in CMIP6 compared to CMIP5 models. Biases in the Southern Ocean are less, similarly with sea ice extent or rainfall etc. but also the models as a whole are ... Read more ...
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A Tale of Two Hockey Sticks - Real Climate (Aug 10, 2021) |
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Aug 10, 2021 · Climate science from climate scientists...
9 Aug 2021 by mike
Two decades ago, the so-called “Hockey Stick” curve, published in 1999 by me and my co-authors (Mann, Bradley and Hughes, 1999), was featured in the all-important “Summary for Policy Makers” (SPM) of the 2001 IPCC Third Assessment report. The curve, which depicted temperature variations over the past 1000 years estimated from “proxy data such as tree rings, corals, ice cores, and lake sediments”, showed the upward spiking of modern temperatures (the “blade”) as it dramatically ascends, during the industrial era, upward from the “handle” that describes the modest, slightly downward steady trend that preceded ... Read more ...
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Rapid attribution of PNW heatwave - Real Climate (Aug 10, 2021) |
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Aug 10, 2021 · Climate science from climate scientists...
7 Jul 2021 by group
Summary: It was almost impossible for the temperatures seen recently in the Pacific North West heatwave to have occurred without global warming. And only improbable with it.
It’s been clear for at least a decade that global warming has been in general increasing the intensity of heat waves, with clear trends in observed maximum temperatures that match what climate models have been predicting. For the specific situation in the Pacific NorthWest at the end of June, we now have the first attribution analysis from the World Weather Attribution group – a consortium of climate experts from around ... Read more ...
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Realclimate redesign - Real Climate (Aug 10, 2021) |
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Aug 10, 2021 · Climate science from climate scientists...
5 Aug 2021 by group
After more than 15 years with basically the same layout, the Realclimate website – while still functional – has become increasing anachronistic both in appearance and ‘under the hood’. In order to take advantage of more up to date web-site designs and new features that have been developed since the early 2000s (!), we need to upgrade the site, and while we are at it, update the theme and design, while maintaining an aesthetic link to the original.
With this post, we can reveal the new layout.
The differences are not related to content but to appearance – all of the ... Read more ...
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RealClimate: Realclimate redesign - Real Climate (Aug 10, 2021) |
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Aug 10, 2021 · Climate science from climate scientists...
5 Aug 2021 by group
After more than 15 years with basically the same layout, the Realclimate website – while still functional – has become increasing anachronistic both in appearance and ‘under the hood’. In order to take advantage of more up to date web-site designs and new features that have been developed since the early 2000s (!), we need to upgrade the site, and while we are at it, update the theme and design, while maintaining an aesthetic link to the original.
With this post, we can reveal the new layout.
The differences are not related to content but to appearance – all of the ... Read more ...
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The IPCC Sixth Assessment Report - Real Climate (Aug 10, 2021) |
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Aug 10, 2021 · Climate science from climate scientists...
9 Aug 2021 by group
Climate scientists are inordinately excited by the release of a new IPCC report (truth be told, that’s a bit odd – It’s a bit like bringing your end-of-(seven)-year project home and waiting anxiously to see how well it will be received). So, in an uncharacteristically enthusiastic burst of effort, we have a whole suite of posts on the report for you to read.
If/when we add some more commentary as we digest the details and we see how the report is being discussed, we’ll link it from here. Feel free to discuss general issues with the report in the comments here, and feel free to ... Read more ...
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We are not reaching 1.5ºC earlier than previously thought - Real Climate (Aug 09, 2021) |
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Aug 09, 2021 · Climate science from climate scientists...
9 Aug 2021 by group
Guest commentary by Malte Meinshausen, Zebedee Nicholls, and Piers Forster
Of all the troubling headlines emerging from the release of the Intergovernmental Panel on Climate Change (IPCC) WG1 report, one warning will surely dominate headlines in the next days and weeks: Earth is likely to reach the crucial 1.5? warming limit in the early 2030s.
In 2018, the IPCC Special Report on 1.5C warming stated in its summary for policy makers that the world was likely to cross the 1.5? threshold between 2030 and 2052, if current warming trends continue.
In this latest AR6, a more comprehensive ... Read more ...
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working climate scientists - Real Climate (Aug 07, 2021) |
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Aug 07, 2021 · Climate science from climate scientists...
6 Dec 2004 by group
The current contributors to content on this site are:
William Connolley was a contributor, but has now left academia; Ray Bradley, David Archer, and Ray Pierrehumbert are no longer active; Jim Bouldin was a contributor from 2009 and Caspar Ammann and Thibault de Garidel were early supporters of the site. Group posts can be assumed to be the from the whole set of current contributers, or will be individually signed.
Filed Under: Contributor Bio's
Primary Sidebar
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1,254 posts
8 pages
224,456 comments Read more ...
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Climate adaptation should be based on robust regional climate information - Real Climate (Jul 25, 2021) |
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Jul 25, 2021 · Climate science from climate scientists...
Climate adaptation steams forward with an accelerated speed that can be seen through the Climate Adaptation Summit in January (see previous post), the ECCA 2021 in May/June, and the upcoming COP26. Recent extreme events may spur this development even further (see previous post about attribution of recent heatwaves).
To aid climate adaptation, Europe’s Climate-Adapt programme provides a wealth of resources, such as guidance, case studies and videos. This is a good start, but a clear and transparent account on how to use the actual climate information for adaptation seems to be missing. How can projections of future heatwaves or ... Read more ...
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The global cooling mole - Real Climate (Jul 16, 2021) |
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Jul 16, 2021 · Climate science from climate scientists...
7 Mar 2008 by group
To veterans of the Climate Wars, the old 1970s global cooling canard – “How can we believe climate scientists about global warming today when back in the 1970s they told us an ice age was imminent?” – must seem like a never-ending game of Whack-a-mole. One of us (WMC) has devoted years to whacking down the mole (see here, here and here, for example), while the other of us (JF) sees the mole pop up anew in his in box every time he quotes contemporary scientific views regarding climate change in his newspaper stories.
Una traducción está disponible aquiTlumaczenie na polski ... | By John Fleck and William Connolley Read more ...
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Why is future sea level rise still so uncertain? - Real Climate (May 12, 2021) |
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May 12, 2021 · Climate science from climate scientists...
Three new papers in the last couple of weeks have each made separate claims about whether sea level rise from the loss of ice in West Antarctica is more or less than you might have thought last month and with more or less certainty. Each of these papers make good points, but anyone looking for coherent picture to emerge from all this work will be disappointed. To understand why, you need to know why sea level rise is such a hard problem in the first place, and appreciate how far we’ve come, but also how far we need to go.
Here’s a list of factors that will influence future regional sea level (in rough order of ... Read more ...
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Two graphs show the path to 1.5 degrees - Real Climate (Apr 21, 2021) |
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Apr 21, 2021 · Climate science from climate scientists...
In the Paris Agreement, just about all of the world’s nations pledged to “pursue efforts to limit the temperature increase to 1.5 degrees Celsius above pre-industrial levels”. On Saturday, the top climate diplomats from the U.S. and China, John Kerry and Xie Zhenhua, reiterated in a joint statement that they want to step up their climate mitigation efforts to keep that goal “within reach”.
But is that still possible? Here are two graphs.
The first graph shows the global temperature trend. Warming has progressed essentially linearly for fifty years in response to increasing CO2 emissions. Although the latter ... Read more ...
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Should the official Atlantic hurricane season be lengthened? - Real Climate (Apr 02, 2021) |
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Apr 02, 2021 · Climate science from climate scientists...
2 Apr 2021 by Jim Kossin
By Jim Kossin, Tim Hall, Mike Mann, and Stefan RahmstorfThe 2020 Atlantic hurricane season broke a number of records, with the formation of an unprecedented 30 “named storms” (storms that reach wind-speed intensity of at least 18 m/s and are then given an official name). The season also started earlier than normal. In fact, when ranked by their order in the season, the date of formation of every named storm, from Tropical Storm Arthur to Hurricane Iota was substantially earlier than normal (Fig. 1).
In 2008, after a series of Atlantic hurricane seasons that began earlier than normal, a ... Read more ...
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A potential rule of thumb for hourly rainfall? - Real Climate (Mar 20, 2021) |
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Mar 20, 2021 · Climate science from climate scientists...
Future global warming will be accompanied by more intense rainfall and flash floods due to increased evaporation, as a consequence of higher surface temperatures which also lead to a higher turn-around rate for the global hydrological cycle. In other words, we will see changing rainfall patterns. And if the global area of rainfall also shrinks, then a higher regional concentration of the rainfall is bound to lead to more intense downpours (the global rainfall indicator is discussed here).
Even with successful mitigation and cut in CO2-emissions, there will be a need for climate change adaptation (e.g. keeping the global warming ... Read more ...
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Looking for help with an electricity tax-swap idea - Real Climate (Mar 04, 2021) |
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Mar 04, 2021 · Climate science from climate scientists...
3 Mar 2021 by group
Guest commentary from Yoram Bauman
Everyone from Treasury Secretary Janet Yellen to Elon Musk thinks that putting a price on carbon is an important step in tackling climate change. Politically, however, carbon taxes and cap-and-trade systems face an uphill battle, in part because they could drive up the prices of household basics like gasoline and electricity. There are many worthy proposals for addressing this concern, mostly focused on the idea of using carbon pricing revenue to pay for things like per-capita dividends, green investments, or reductions in payroll taxes.
But what if you could put ... Read more ...
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The Rise and Fall of the “Atlantic Multidecadal Oscillation” - Real Climate (Mar 04, 2021) |
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Mar 04, 2021 · Climate science from climate scientists...
4 Mar 2021 by mike
Two decades ago, in an interview with science journalist Richard Kerr for the journal Science, I coined the term the “Atlantic Multidecadal Oscillation” (AMO) to describe an internal oscillation in the climate system resulting from interactions between North Atlantic ocean currents and wind patterns. These interactions were thought to lead to alternating decades-long intervals of warming and cooling centered in the extra-tropical North Atlantic that play out on 40-60 year timescales (hence the name). Think of the purported AMO as a much slower relative of the El Niño/Southern Oscillation (ENSO), ... Read more ...
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Laschamps-ing at the bit - Real Climate (Feb 26, 2021) |
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Feb 26, 2021 · Climate science from climate scientists...
A placeholder to provide some space to discuss the paper last week (Cooper et al, 2021) on the putative climate consequences of the Laschamps Geomagnetic Excursion, some 42,000 yrs ago.
There was some rather breathless reporting on this paper, but there were also a lot of sceptical voices – not of the main new result (a beautiful new 14C dataset from a remarkable kauri tree log found in New Zealand), but of the more speculative implications – both climatically and anthropologically.
The paper presents some modeling of the impact of the geomagnetic change – mainly affecting solar energetic particles in the ... Read more ...
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Regional information for society (RifS) and unresolved issues - Real Climate (Feb 14, 2021) |
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Feb 14, 2021 · Climate science from climate scientists...
It’s encouraging to note the growing interest for regional climate information for society and climate adaptation, such as recent advances in the World Climate Research Programme (WCRP), the climate adaptation summit CAS2021, and the new Digital Europe. These efforts are likely to boost the Global Framework for Climate Services (GFCS) needed as a guide to decision-makers on matters influenced by weather and climate.
These new moves underscore the understanding that we must start to act on mitigation and adaptation now. But I think we also need to keep in mind that there still are some unresolved issues when it comes to ... Read more ...
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Don’t climate bet against the house - Real Climate (Feb 04, 2021) |
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Feb 04, 2021 · Climate science from climate scientists...
3 Feb 2021 by Gavin
Decades ago (it seems) when perhaps it was still possible to have good faith disagreements about the attribution of current climate trends, James Annan wrote a post here summarizing the thinking and practice of Climate Betting. That led to spate of wagers on continued global warming (a summary of his bets through 2005 and attempts to set up others is here).
There were earlier bets, the most well known perhaps was the one for $100 between Hugh Ellsaesser and Jim Hansen in 1989 on whether there would be a new temperature record within three years. There was (1990), and Ellsaesser paid up in January 1991 ... Read more ...
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Climate Adaptation Summit 2021 - Real Climate (Jan 31, 2021) |
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Jan 31, 2021 · Climate science from climate scientists...
The first ever Climate Adaptation Summit (#adaptationsummit) that I have heard about took place last week, on January 25-26. I think such a summit was a step in the right direction. It was adapted to the Covid-19 situation and therefore an online virtual summit streamed on YouTube.
I watched a few of the streamed sessions, and it struck me that climate change adaptation seems to be a fairly new concept to many leaders. It were sometimes mix-ups with mitigation during the high-level talks. Mitigation and adaptation are both important and sometimes they overlap, so mix-ups are understandable.
One important point addressed ... Read more ...
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Mind the Gap! - Real Climate (Jan 29, 2021) |
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Jan 29, 2021 · Climate science from climate scientists...
18 Nov 2008 by rasmus
Confusion has continued regarding trends in global temperatures. The misconception ‘the global warming has stopped’ still lives on in some minds. We have already discussed why this argument is flawed. So why have we failed to convince ;-) ?
Una traduzione in italiano è disponibile qui.
The confused argument hinges on one data set – the HadCRUT 3V – which is only one of several estimates, and it is the global temperature record that exhibits the least change over the last decade. Other temperature analyses suggest greater change (warming). Thus, one could argue that the ... Read more ...
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2020 Hindsight - Real Climate (Jan 15, 2021) |
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Jan 15, 2021 · Climate science from climate scientists...
Yesterday was the day that NASA, NOAA, the Hadley Centre and Berkeley Earth delivered their final assessments for temperatures in Dec 2020, and thus their annual summaries. The headline results have received a fair bit of attention in the media (NYT, WaPo, BBC, The Guardian etc.) and the conclusion that 2020 was pretty much tied with 2016 for the warmest year in the instrumental record is robust.
There is some more background here:
A bit more background on the temperature anomalies in 2020, which were statistically tied with 2016 for the warmest year in the instrumental record. pic.twitter.com/y3L6vgVnc3
[Note we ... Read more ...
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Flyer tipping - Real Climate (Jan 12, 2021) |
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Jan 12, 2021 · Climate science from climate scientists...
You would be forgiven for not paying attention to the usual suspects of climate denial right now, but they are trying to keep busy anyway.
Last week (January 8), Roy Spencer [Update Jan 13: now deleted] posted a series of Climate Change “flyers” on his personal blog that purported to be organised by David Legates (NOAA, detailed to Office of Science and Technology Policy (OSTP), nominally on leave from (and soon to return to) U. Delaware). Each was a rather garishly colored rehash of standard climate denial talking points, but featuring the OSTP official logo, and claiming to be copyrighted by OSTP (a legal ... Read more ...
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The number of tropical cyclones in the North Atlantic - Real Climate (Dec 23, 2020) |
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Dec 23, 2020 · Climate science from climate scientists...
2020 has been an unusual and challenging year in many ways. One was the record-breaking number of named tropical cyclones in the North Atlantic (and the Carribean Sea). There has been 30 named North Atlantic tropical cyclones in 2020, beating the previous record of 28 from 2005 by two.
A natural question then is whether we can expect this high number in the future or if the number of tropical storms will continue to increase. A high number of such events is equivalent to a high frequency of tropical cyclones.
But we should expect fewer tropical cyclones generally in a warmer world according to the IPCC “SREX” report from ... Read more ...
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An ever more perfect dataset? - Real Climate (Dec 15, 2020) |
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Dec 15, 2020 · Climate science from climate scientists...
Do you remember when global warming was small enough for people to care about the details of how climate scientists put together records of global temperature history? Seems like a long time ago…
Nonetheless, it’s worth a quick post to discuss the latest updates in HadCRUT (the data product put together by the UK’s Hadley Centre and the Climatic Research Unit at the University of East Anglia). They have recently released HadCRUT5 (Morice et al., 2020), which marks a big increase in the amount of source data used (similarly now to the upgrades from GHCN3 to GHCN4 used by NASA GISS and NOAA NCEI, and comparable ... Read more ...
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Thinking, small and big - Real Climate (Nov 29, 2020) |
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Nov 29, 2020 · Climate science from climate scientists...
The point that climate downscaling must pay attention to the law of small numbers is no joke.
The World Climate Research Programme (WCRP) will become a ‘new’ WCRP with a “soft launch” in 2021. This is quite a big story since it coordinates much of the research and the substance on which the Intergovernmental Panel on Climate Change (IPCC) builds.
Until now, the COordinated Regional Downscaling EXperiment (CORDEX) has been a major project sponsored by the WRCP. CORDEX has involved regional modelling and downscaling with a focus on the models and methods rather than providing climate services. In its new form, ... Read more ...
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Start here - Real Climate (Oct 21, 2020) |
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Oct 21, 2020 · Climate science from climate scientists...
22 May 2007 by group
[Note this is page is updated regularly. Please notify us of any dead links. Last update: 26 Jan 2020.]
We’re often asked to provide a one stop link for resources that people can use to get up to speed on the issue of climate change, and so here is a selection. Unlike our other postings, we’ll amend this as we discover or are pointed to new resources. Different people have different needs and so we will group resources according to the level people start at.
For complete beginners:
NCAR: Weather and climate basics Center for Climate and Energy Solutions: Climate basics ... Read more ...
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New studies confirm weakening of the Gulf Stream circulation (AMOC) - Real Climate (Sep 17, 2020) |
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Sep 17, 2020 · Climate science from climate scientists...
Many of the earlier predictions of climate research have now become reality. The world is getting warmer, sea levels are rising faster and faster, and more frequent heat waves, extreme rainfall, devastating wildfires and more severe tropical storms are affecting many millions of people. Now there is growing evidence that another climate forecast is already coming true: the Gulf Stream system in the Atlantic is apparently weakening, with consequences for Europe too.
The gigantic overturning circulation of the Atlantic water (dubbed AMOC) moves almost 20 million cubic meters of water per second – almost a hundred times the ... Read more ...
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?First successful model simulation of the past 3 million years of climate change - Real Climate (Sep 02, 2020) |
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Sep 02, 2020 · Climate science from climate scientists...
3 Apr 2019 by Stefan
Guest post by Matteo Willeit, Potsdam Institute for Climate Impact Research
A new study published in Science Advances shows that the main features of natural climate variability over the last 3 million years can be reproduced with an efficient model of the Earth system.
The Quaternary is the most recent geological Period, covering the past ~2.6 million years. It is defined by the presence of glacial-interglacial cycles associated with the cyclic growth and decay of continental ice sheets in the Northern Hemisphere. Climate variations during the Quaternary are best seen in oxygen isotopes measured ... Read more ...
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