The IPCC's Shifting Position on Nuclear Energy as a Climate Option

November 4, 2014 by Suzanne Waldman

The International Panel on Climate Change was formed in 1988 by the UN. Its report on Response Strategies in 1990 seemed fairly neutral about strategies, proposing “[e]xpansion of conventional nuclear power plants” along with “[s]tandardized design of nuclear power plants to improve economics and safety.[read more]


IPCC: "Rebound Effects Cannot Be Ignored"

May 21, 2014 by Jesse Jenkins

IPCC on Rebound Effects

Cost-saving energy efficiency measures can trigger a rebound in energy demand which can have the effect of eroding some of the climate benefits of efficiency, according to the Intergovernmental Panel on Climate Change's Fifth Assessment Report.[read more]


Case Study: Boulder Colorado Takes Action On Climate Change

November 8, 2011 by Tom Plant

On November 1, Boulder Colorado became the first community in the country to authorize separation from their incumbent utility based on that utility's reliance on coal generation. Through this vote, Boulder has chosen to stop talking about climate change and move those intentions into action by tying utility performance to reductions in greenhouse gases.[read more]

Global CO2 Emissions Take A “Monster” Jump In 2010

November 4, 2011 by Tyler Hamilton

The good news: developed countries that ratified the Kyoto Protocol, Canada notwithstanding, have collectively reduced CO2 emissions to below 1990 levels. The bad news: Emissions from the United States, China, India and other developing countries took a giant leap in 2010, bringing total global emissions 6 per cent higher than the...[read more]

Is Forest Carbon Just Another Commodity?

August 23, 2011 by NIck Oakes

Using REDD+ as a private sector offsetting mechanism runs the risk of creating perverse incentives, exposing land to market price volatility and causing supply-induced price suppression. However, for the purposes of a deeper exploration into the market-related issues of REDD+, let’s assume these problems are solved and that forest carbon can, in theory, be commoditised and traded. This begs the question of whether forest carbon can be treated and traded like any other commodity.[read more]

Are MIT Students Smarter Than 5th Graders?

August 10, 2011 by Gernot Wagner

Ask any climate scientist to explain global warming to a fifth grader, and they will pull out the bathtub analogy: The atmosphere is the tub. The level of carbon is the water standing in said tub. There’s a spigot and a sink—water in and water out. For the longest time, carbon in and carbon out of the atmosphere have been in balance....[read more]

Marrying Gas and Renewables

June 15, 2011 by Geoffrey Styles

Marrying Gas and Renewables A Turkish developer recently announced that it would build a new power plant using technology from GE that matches wind and solar generation to the output of a highly responsive natural gas turbine, all integrated in one package with the hardware and software to mesh its output with the grid. GE is...[read more]

Renewable Energy – What Is The IPCC Telling Us?

May 13, 2011 by David Hone

Later this month the IPCC will launch a very substantial report on Renewable Energy and Climate Change. In advance of that, a “Summary for Policy Makers” was released early this week following the 11th Session of Working Group III of the IPCC, held in Abu Dhabi on 5-8th May. In tandem with the Summary document was a press release, which starts out with the words - "Close to 80 percent of the world’s energy supply could be met by renewables by mid-century if backed by the right enabling public policies a new report shows." Not surprisingly, this key phrase was repeated in headlines the world over, with much media enthusiasm for the report. But it isn’t what the Summary is actually about, nor does the Summary give any details into how this may come about.[read more]

Mann: Ice Has No Agenda

November 9, 2010 by Michael Tobis

Here's a NOAA graphic that's been floating around. It's interesting how a little attention to design makes it somehow more attractive. It really doesn't take long to get the gist. Maybe the colors will help people remember it, though. Call it the Quaternary CO2 Hockey Stick or the orange on navy blue curve.A site called Universe Today...[read more]

Speak no Evil

November 6, 2010 by Michael Tobis

It's hard to stop thinking about all the oddities coming from Judith Curry. I think one could easily fill a blog just cataloguing them.Astonishingly, after all that she has said in the last few months, whe writes a piece today asking "how we can end the war with skeptics", where the collective pronoun includes herself not among skeptics...[read more]

IPCC got it tragically wrong

March 21, 2010 by Lou Grinzo

The worst news possible about the IPCC comes in the form of a new report. Does this one claim that the IPCC made some newly discovered trivial mistake? No. Unlike the plethora of barely there (or wholly imagined) “-gates” we’ve all read so much about in recent weeks that say nothing about the underlying science or the overall IPCC...[read more]

Amazon Rainforest Still Very Susceptible to Dieback Due to Climate Change

March 19, 2010 by NRDC Switchboard

In the ongoing onslaught on the science underlying global warming, one recent criticism has focused on the finding that global warming could cause large-scale dieback of Amazon rainforest as cited in the Intergovernmental Panel on Climate Change (IPCC) report (a point spun by the opponents of action on global warming as this post...[read more]

Monbiot: There is no simple way to battle public hostility to climate research. As the psychologists show, facts barely sway us anyway

March 18, 2010 by Joseph Romm

There is one question that no one who denies manmade climate change wants to answer: what would it take to persuade you? In most cases the answer seems to be nothing. No level of evidence can shake the growing belief that climate science is a giant conspiracy codded up by boffins and governments to tax and control us. That’s UK...[read more]

Open letter to U.S. government from over 250 U.S. scientists on climate change and the IPCC reports

March 15, 2010 by Joseph Romm

[If you are a scientist wishing to sign the letter, please fill out the form on the this page.] It is our intention in offering this open letter to bring the focus back to credible science, rather than invented hyperbole, so that it can bear on the policy debate in the United States and throughout the world.  We first discuss some...[read more]


March 11, 2010 by Lou Grinzo

Stefan Rahmstorf has an exceelent post on RealClimate about the curiously low sea level rise projection in the latest IPCC report, Sealevelgate: Imagine this. In its latest report, the IPCC has predicted up to 3 meters of sea level rise by the end of this century. But “climate sceptics” websites were quick to reveal a few problems (or...[read more]