Site: Real Climate

Slant: Warmist

Active: yes

RealClimate was registered by the organisation: Environmental Media Services which appears to be funded by George Soros. The site describes itself as "a commentary site on climate by academics for the interested public and journalists and says it aims to provide a quick response to developing stories and provide the context sometimes missing in mainstream commentary."

Recent Articles

Real Climate: Unforced variations: Feb 2018

This month’s open thread for climate science topics. Note that discussions about mitigation and/or adaptation should be on the Forced Responses thread. Let’s try and avoid a Groundhog Day scenario in the comments!

2018-02-02 19:31   Click to comment

Real Climate: IPCC Communication handbook

A new handbook on science communication came out from IPCC this week. Nominally it’s for climate science related communications, but it has a wider application as well. This arose mainly out of an “Expert meeting on Communication” that IPCC held in 2016. 6 principles to help IPCC scientists better communicate their work There was a

2018-01-31 14:32   Click to comment

Real Climate: The global CO2 rise: the facts, Exxon and the favorite denial tricks

The basic facts about the global increase of CO2 in our atmosphere are clear and established beyond reasonable doubt. Nevertheless, I’ve recently seen some of the old myths peddled by “climate skeptics” pop up again. Are the forests responsible for the CO2 increase? Or volcanoes? Or perhaps the oceans? Let’s start with a brief overview

2018-01-25 15:53   Click to comment

Real Climate: The claim of reduced uncertainty for equilibrium climate sensitivity is premature

A recent story in the Guardian claims that new calculations reduce the uncertainty associated with a global warming: A revised calculation of how greenhouse gases drive up the planet’s temperature reduces the range of possible end-of-century outcomes by more than half, … It was based on a study recently published in Nature , however, I

2018-01-21 07:53   Click to comment

Real Climate: 2017 temperature summary

This is a thread to discuss the surface temperature records that were all released yesterday (Jan 18). There is far too much data-vizualization on this to link to, but feel free to do so in the comments. Bottom line? It’s still getting warmer.

2018-01-19 14:09   Click to comment

Real Climate: Forced Responses: Jan 2018

This is a new class of open thread for discussions of climate solutions, mitigation and adaptation. As always, please be respectful of other commentators and try to avoid using repetition to make your points. Discussions related to the physical Earth System should be on the Unforced Variations threads.

2018-01-01 14:30   Click to comment

Real Climate: Unforced Variations: Jan 2018

Happy new year, and a happy new open thread. In response to some the comments we’ve been getting about previous open threads, we are going to try separating out OT comments on mitigation/saving the planet/theories of political action from ones related to the physical climate system. This thread remains a place for climate science issues,

2018-01-01 14:28   Click to comment

Real Climate: What did NASA know? and when did they know it?

If you think you know why NASA did not report the discovery of the Antarctic polar ozone hole in 1984 before the publication of in May 1985, you might well be wrong. One of the most fun things in research is what happens when you try and find a reference to a commonly-known fact and

2017-12-24 23:06   Click to comment

Real Climate: Fall AGU 2017

It’s that time of year again. #AGU17 is from Dec 11 to Dec 16 in New Orleans (the traditional venue in San Francisco is undergoing renovations). As in previous years, there will be extensive live streams from “AGU On Demand” (free, but an online registration is required) of interesting sessions and the keynote lectures from

2017-12-08 01:40   Click to comment

Real Climate: Unforced Variations: Dec 2017

Last open-thread of the year. Tips for new books for people to read over the holidays? Highlights of Fall AGU (Dec 11-15, New Orleans)? Requests for what should be in the end of year updates? Try to be nice.

2017-12-03 20:02   Click to comment

Real Climate: A brief review of rainfall statistics

There have been a number of studies which show that we can expect more extreme rainfall with a global warming . Hence, there is a need to increase our resilience to more rainfall in the future. We can say something about how the rainfall statistics will be affected by a global warming, even when the

2017-11-21 16:53   Click to comment

Real Climate: O Say can you See Ice…

Some concerns about continued monitoring of sea ice by remote sensing were raised this week in Nature News an article in the (UK) Observer: Donald Trump accused of obstructing satellite research into climate change. The last headline is not really correct, but the underlying issues are real. What is this about? Since the late seventies,

2017-11-07 04:35   Click to comment

Real Climate: Unforced variations: Nov 2017

This month’s open thread. Lawsuits about scientific disputes, the new Climate Science Special Report from the National Climate Assessment, and (imminently) the WMO State of the Climate statement for 2017.

2017-11-04 16:58   Click to comment

Real Climate: El Niño and the record years 1998 and 2016

2017 is set to be one of warmest years on record. Gavin has been making regular forecasts of where 2017 will end up, and it is now set to be #2 or #3 in the list of hottest years: With update thru September, ~80% chance of 2017 being 2nd warmest yr in the GISTEMP analysis

2017-11-04 12:02   Click to comment

Real Climate: O Say Can You CO2…

Guest Commentary by Scott Denning The Orbiting Carbon Observatory (OCO-2) was launched in 2014 to make fine-scale measurements of the total column concentration of CO2 in the atmosphere. As luck would have it, the initial couple of years of data from OCO-2 documented a period with the fastest rate of CO2 increase ever measured, more

2017-10-12 20:22   Click to comment

Real Climate: 1.5ºC: Geophysically impossible or not?

Guest commentary by Ben Sanderson Millar et al’s recent paper in Nature Geoscience has provoked a lot of lively discussion, with the authors of the original paper releasing a statement to clarify that there paper did not suggest that “action to reduce greenhouse gas emissions is no longer urgent“, rather that 1.5ºC (above the pre-industrial)

2017-10-05 03:53   Click to comment

Real Climate: …the Harde they fall.

Back in February we highlighted an obviously wrong paper by Harde which purported to scrutinize the carbon cycle. Well, thanks to a crowd sourced effort which we helped instigate, a comprehensive scrutiny of those claims has just been . Lead by Peter Köhler, this included scientists from multiple disciplines working together to clearly report on

2017-10-05 02:27   Click to comment

Real Climate: Unforced variations: Oct 2017

This month’s open thread. Carbon budgets, Arctic sea ice minimum, methane emissions, hurricanes, volcanic impacts on climate… Please try and stick to these or similar topics.

2017-10-01 19:49   Click to comment

Real Climate: Is there really still a chance for staying below 1.5 °C global warming?

There has been a bit of excitement and confusion this week about a new paper in Nature Geoscience, claiming that we can still limit global warming to below 1.5 °C above preindustrial temperatures, whilst emitting another ~800 Gigatons of carbon dioxide. That’s much more than previously thought, so how come? And while that sounds like

2017-09-22 18:21   Click to comment

Real Climate: Impressions from the European Meteorological Society’s annual meeting in Dublin 

The 2017 annual assembly of the European Meteorological Society (EMS) had a new set-up with a plenary keynote each morning. I though some of these keynotes were very interesting. There was a talk by Florence Rabier from the European Centre for Medium-range Weather Forecasts (ECMWF), who presented the story of ensemble forecasting. Keith Seitter, the

2017-09-14 15:17   Click to comment

Real Climate: Why extremes are expected to change with a global warming

Joanna Walters links extreme weather events with climate change in a recent article in the Guardian, however, some  reservations have been expressed about such links in past discussions. For example, we discussed the connection between single storms and global warming in the post Hurricanes and Global Warming – Is there a connection?, the World Meteorological Organization (WMO)…

2017-09-05 15:24   Click to comment

Real Climate: Unforced Variations: Sep 2017

This month’s open thread…. and let’s stay on climate topics this month. It’s not like there isn’t anything climate-y to talk about (sea ice minimums, extreme events, climate model tunings, past ‘hyperthermals’… etc.). Anything too far off-topic will get binned. Thanks!

2017-09-01 18:35   Click to comment

Real Climate: Data rescue projects

It’s often been said that while we can only gather new data about the planet at the rate of one year per year, rescuing old data can add far more data more quickly. Data rescue is however extremely labor intensive. Nonetheless there are multiple data rescue projects and citizen science efforts ongoing, some of which

2017-08-17 14:23   Click to comment

Real Climate: Sensible Questions on Climate Sensitivity

Guest Commentary by Cristian Proistosescu, Peter Huybers and Kyle Armour tl;dr  Two recent papers help bridge a seeming gap between estimates of climate sensitivity from models and from observations of the global energy budget. Recognizing that equilibrium climate sensitivity cannot be directly observed because Earth’s energy balance is a long way from equilibrium, the studies

2017-08-16 01:24   Click to comment

Real Climate: Observations, Reanalyses and the Elusive Absolute Global Mean Temperature

One of the most common questions that arises from analyses of the global surface temperature data sets is why they are almost always plotted as anomalies and not as absolute temperatures. There are two very basic answers: First, looking at changes in data gets rid of biases at individual stations that don’t change in time

2017-08-11 03:11   Click to comment

Real Climate: Unforced Variations: August 2017

This month’s open thread.

2017-08-02 08:05   Click to comment

Real Climate: Joy plots for climate change

This is joy as in ‘Joy Division’, not as in actual fun. Many of you will be familiar with the iconic cover of Joy Division’s Unknown Pleasures album, but maybe fewer will know that it’s a plot of signals from a pulsar (check out this Scientific American article on the history). The length of the

2017-07-22 19:58   Click to comment

Real Climate: The climate has always changed. What do you conclude?

Probably everyone has heard this argument, presented as objection against the findings of climate scientists on global warming: “The climate has always changed!” And it is true: climate has changed even before humans began to burn fossil fuels. So what can we conclude from that? A quick quiz Do you conclude… (1) that humans cannot

2017-07-20 08:16   Click to comment

Real Climate: Red team/Blue team Day 1

From Russell Seitz:

2017-07-15 18:19   Click to comment

Real Climate: Climate Sensitivity Estimates and Corrections

You need to be careful in inferring climate sensitivity from observations. Two climate sensitivity stories this week – both related to how careful you need to be before you can infer constraints from observational data. (You can brush up on the background and definitions here). Both cases – a “Brief Comment Arising” in Nature (that

2017-07-12 19:01   Click to comment

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