How the phrasing of survey questions has a huge effect on people's reported concern over the priority of environment/climate issues.

How the effect of higher CO2 on plants may cause further amplification of warming (e.g. through reduced transpiration).

List of the most cited papers (by institution, author, and journal) in climate science in the decade to 2009. Australian notables: CSIRO is #17 institution, individuals are at #3, #8, and #18.

Good piece from Robert Grumbine discussing the limits and problems with the idea that all science should be reproducable by anyone.

Fairly technical overview of the physics of the greenhouse effect, from Chris Colose.

Quick overview of the evidence for a human fingerprint on climate change.

Strong summary of the state of Australia's climate, from CSIRO and BOM.

Statistical analysis of global temperature data, proving that two of the most prominent claims of global warming denialists (that the dramatic reduction in the number of reporting stations around 1990 introduced a false warming trend, and that the adjustments applied to station data also introduce a false warming trend) are utterly false.

List of major scientific organisations and their stances on anthropogenic global warming. Notably, there is now not a single major scientific organisation that maintains a denial position.

Summary of the effective consensus on anthropogenic global warming and mainstream climate science: a list of the major organisations that have stated support.

Excellent bare-bones, basic summary of the physics of the greenhouse effect.

Brief summary of the CFC/ozone battles, specifically looking at the tactics used by industry to delay action (very much reminiscent of the current tactics used by Big Coal and so-called "climate skeptics", i.e. denialists...)

Handy one-page summary of the evidence that demonstrates anthropogenic global warming.

Shows just how pointless - and extraordinarily poorly designed - Anthony Watts and Roger J. Pielke Senior's surfacestations.org project was. Eli Rabett discusses the Climate Reference Network of US surface temperature stations, and how the record of temperature anomalies shows that the underlying warming trend is very accurately captured by the existing network of measuring stations.

Evidence that Pine Island Glacier and Thwaite's Glacier have passed a tipping point and may melt (and calve) much faster than expected.

List of published papers which attempt to deny/minimise AGW, and list of debunking papers/articles for each.

You would have to go back at least 15 million years to find carbon dioxide levels on Earth as high as they are today, a UCLA scientist and colleagues report Oct. 8 in the online edition of the journal Science.

Bureau of Meteorology summary of Australian climate for 2009.

How to accelerate natural weathering of olivine to draw down / reduce CO2 in the atmosphere. Looks like one of the most promising forms of geoengineering. PDF (2 MB)

Statistical analysis of corrections made to temperature data by meteorological organisations. Shows that there is no pro-warming bias in the corrections.

Summary of the lines of evidence supporting AGW, and how SwiftHack/ClimateGate/the CRU email hack has done nothing to negate them.

Tamino demonstrates with graphs how short term uncertainty in global temperature (due to the amount of natural variation) means we need at least 15 years of data to establish a clear trend.

Projecting a 4-degree warming. Includes a map which shows the distance that temperature zones would shift.

With this applet, you can develop your own scenarios for future human emissions and future carbon sinks in the oceans and on the land. Run the applet to see the impact on atmospheric CO2 and global mean temperature.

New discoveries about the deep ocean's temperature variability and circulation system could help improve projections of future climate conditions. The deep ocean is affected more by surface warming than previously thought, and this understanding allows for more accurate predictions of factors such as sea level rise and ice volume changes.

High ocean surface temperatures have also been found to result in a more vigorous deep ocean circulation system. This increase results in a faster transport of large quantities of warm water, with possible impacts including reduction of sea ice extent and overall warming of the Arctic.

List of statements on the CRU stolen emails affair from various reputable sources, including IPCC, Met Office, Royal Society, Nature, American Meteorological Society, New Scientist, Scientific American, etc etc.

Nice overview of climate denial: the tactics and the best response.

Data visualisation / text summary of pro-AGW and anti-AGW arguments (incorrect in several places, but not a bad overview)

Excellent summary of the global temperature warming trend. The perfect antidote to those who say "there's been a cooling trend for the last decade".

There is a good chance that next year will be the hottest year recorded for the world, according to new forecasts from the Met Office's climate prediction and research branch, the Hadley Centre.

A new forecast for the decade from 2009 onwards suggests that "at least half" of the years up to 2019 will be hotter than the hottest year so far, which was 1998. And it indicates that the first of the years to break the current record will actually be 2010.

According to Tim Garrett, an associate professor of atmospheric sciences, University of Utah, rising carbon dioxide (CO2) emissions - the major cause of global warming - cannot be stabilised unless the world's economy collapses or society builds the equivalent of one new nuclear power plant each day. The study, which is based on the concept that physics can be used to characterize the evolution of civilization, indicates that energy conservation or efficiency doesn't really save energy, but instead spurs economic growth and accelerated energy consumption.

Backfire: the stolen emails from CRU reveal what looks like fraud - but not by real climate scientists. The apparent fraud is in a paper by the infamous contrarians David H. Douglass, John R. Christy, Benjamin D. Pearsona and S. Fred Singer.

Climate change could increase the likelihood of civil war in sub-Saharan Africa by over 50 percent within the next two decades, according to a new study led by a team of researchers at University of California, Berkeley, and published in the Nov. 23 online issue of the journal Proceedings of the National Academy of Sciences (PNAS).

Beautifully sarcastic reflection of the CRU-stolen-emails affair.

Intriguing research that reveals that weather (and thus climate) may be extricable using fractal mathematics.

Arctic waters are rapidly turning acidic, even faster than originally thought. New research from oceanographer Dr. James Orr of the Laboratory for the Sciences of Climate and Environment in Paris predicts that the Arctic Ocean will be corrosive enough to dissolve shells of clams, mussels and others within the next decade.

JUST months - that's how long it took for Europe to be engulfed by an ice age. The scenario, which comes straight out of Hollywood blockbuster The Day After Tomorrow, was revealed by the most precise record of the climate from palaeohistory ever generated.

Full online syllabus covering climate science, from Columbia University (EESC).

Ray Pierrehumbert on the physics of climate: "This is the resource site for my book on physics of climate, which is under contract to be published by Cambridge University Press. Here, you will find the latest version of the working draft of the book, together with an extensive set of exercises in the form of a workbook."

Keith Briffa refutes the allegations made by Steve McIntyre about the Yamal tree ring series.

5-page feature piece on ocean "cooling" initially seen in Argo results, and the subsequent analysis that found the measurement problems involved.

Overview of ocean heat content studies.

Overview of ocean heat content studies.

UK Met Office: global impacts of climate change

The British government has stepped up its pre-Copenhagen campaign for a global emissions deal, yesterday releasing this interactive map of what a 4ºC temperature increase would mean for the world. Click on the map to explore the impacts listed across the bottom.

RealClimate with another analysis of Superfreakonomics on climate.

List of articles analysing the failure of "Superfreakonomics" on climate.

Analysis of the problems with geoengineering via adding sulphur dioxide aerosols to the upper atmosphere - reduction in precipitation, ocean acidification not addressed, ozone impact, acid rain in polar regions, etc.

Eric Wolff on temperature - CO2 lag: it's a mutual feedback. Key point: there is no period when CO2 is rising and temperature is not.

William M. Connolley finds 10 major errors in the "SuperFreakonomics" chapter on global warming.

A follow-up to the bestselling book "Freakonomics" features a chapter that grossly mischaracterizes climate science, according to the Union of Concerned Scientists.

The new book, "SuperFreakonomics" by Steven D. Levitt and Stephen J. Dubner, is slated to be officially released on October 20, 2009. Experts at UCS found that the fifth chapter of the book, "Global Cooling," repeats a large number of easily discredited arguments regarding climate science, energy production, and geoengineering.

The authors appear to have taken a purposefully contrarian position on climate change science and economics. While such a position may help draw attention to their book, their reliance on faulty arguments and distorted statistics does a disservice to their readers.

Analysis of Vostok ice core data showing that the common meme that "CO2 lags temperature" appears to be mostly (but not always) valid for valleys (low temp & CO2) but mostly (but not always) invalid for peaks (high temp and CO2).

It still surprises me when I hear skeptics claim there is no evidence that we're causing global warming. The evidence is there in the peer reviewed literature. What they're really saying is they haven't bothered to look. So to make things easier for everyone, here is the evidence that humans are causing global warming. It's not based on theory, climate models, faith or political ideology but on direct, empirical observations.

Debunking of Paul Hudson's ill-informed recent BBC article.

Chris Colose: this post outlines some of the basic radiative forcing and feedback physics which climatologists use to assess climate change. This is fairly standard material which should be understood by anyone with a deep interest in climate.

Overview of the Yamal "scandal" raised by Steve Macintyre of Climate Audit, and debunking of the allegations made by Macintyre against Keith Briffa - and the "hockey stick".

Electricity is invisible. To understand how people use it, you need to make it visible. This tutorial will show you how easy it is to build a Web-based energy monitoring system yourself, using a Current Cost real-time energy monitor and AMEE, a neutral Web-based API for energy data, combined with some XML, Ruby, Rails, and Ajax.

Skeptics proclaim that global warming stopped in 1998. That we're now experiencing global cooling. However, these arguments overlook one simple physical reality - the land and atmosphere are only one small fraction of the Earth's climate (albeit the part we inhabit). Global warming is by definition global. The entire planet is accumulating heat due to an energy imbalance. The atmosphere is warming. Oceans are accumulating energy. Land absorbs energy and ice absorbs heat to melt. To get the full picture on global warming, you need to view the Earth's entire heat content.

Analysis by Ted Trainer - how renewables cannot meet energy demand

Play Catchment Detox to see if you can repair a damaged river catchment and create a sustainable and thriving economy.

It's an online game where you're in charge of the whole catchment. You get to decide what activities you undertake - whether to plant crops, log forests, build factories or set up national parks. The aim is to fix environmental problems and provide food and wealth for the population.

Managing Australia's waterways is a huge challenge with climate change, increased demand for water and environmental problems putting our rivers under stress. Catchment Detox gives an idea of just how difficult it is to manage a river catchment.

Are you up for the challenge?

Identifying and quantifying planetary boundaries that must not be transgressed could help prevent human activities from causing unacceptable environmental change, argue Johan Rockström and colleagues.
Summary
A safe operating space for humanity

Online collection.

* New approach proposed for defining preconditions for human development
* Crossing certain biophysical thresholds could have disastrous consequences for humanity
* Three of nine interlinked planetary boundaries have already been overstepped

NGO promoting GenIV nuclear, etc; includes Jim Hansen, Barry Brook, etc

A three-year collaboration between the Bureau of Meteorology and CSIRO has confirmed what many scientists long suspected: that the 13-year south-eastern Australian drought is not just a natural dry stretch but a shift related to climate change.

3 hour BBC series on climate change science: history, denial and the future.

Nice overview of climate forcings over the last century

We might grow more crops thanks to all the CO2 we're pumping into the atmosphere – but they'll be poorer quality and not as good for us.

This site hosts some C++ software tools for analysis and graphing of time series data, and an interactive graph generator where you can play with different ways of analysing data.

Fifteen of Australia's top climate experts explain how we know humans are altering the atmosphere and why we must act now.