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California Air Pollution Regulations Lead to Reduction in Air Pollution

Ever wonder what’s in the black cloud that emits from some semi trucks that you pass on the freeway? Lawrence Berkeley National Laboratory (Berkeley Lab) scientist Thomas Kirchstetter knows very precisely what’s in there, having conducted detailed measurements of thousands of heavy-duty trucks over months at a time at two San Francisco Bay Area locations.

12 Dec 2014

Spatial Patterns of Extreme Temperature Anomalies are Warming Even Faster than Overall Average

It's widely known that the Earth's average temperature has been rising. But research by an Indiana University geographer and colleagues finds that spatial patterns of extreme temperature anomalies -- readings well above or below the mean -- are warming even faster than the overall average.

11 Dec 2014

Researchers Uncover Previously Unknown Source of Greenhouse Gas Methane

Princeton University researchers have uncovered a previously unknown, and possibly substantial, source of the greenhouse gas methane to the Earth's atmosphere.

11 Dec 2014

Economists, Lawyers Urge Several Improvements to U.S. Government's Social Cost of Carbon Figure

The Social Cost of Carbon puts a dollar value on the climate damages per ton of CO2 released, and is used by - among others -policymakers to help determine the costs and benefits of climate policies. In the latest issue of the journal Science, a group of economists and lawyers urge several improvements to the government's Social Cost of Carbon figure that would impose a regular, transparent and peer-reviewed process to ensure the figure is reliable and well-supported by the latest facts.

5 Dec 2014

New Research Reveals Rise in Temperature of Seawater Around Antarctica

The temperature of the seawater around Antarctica is rising according to new research from the University of East Anglia.

5 Dec 2014

Ocean Heat Uptake May be the Cause of Decade-Long Slowdown in Global Surface Warming

New research shows that ocean heat uptake across three oceans is the likely cause of the 'warming hiatus' - the current decade-long slowdown in global surface warming.

4 Dec 2014

Extreme Weather Events May Increase Greenhouse Gas Emissions

Scientists at Helmholtz Zentrum München, in collaboration with colleagues from the TU München and the Karlsruhe Institute of Technology (KIT), have studied how soil microorganisms react to climatic change. Their result: Extreme weather events such as long periods of drought and heavy rainfall have a strong impact on the metabolic activity of microbes. This may lead to a change in the nutrient balance in soils and, in extreme cases, may even increase greenhouse gas emissions like nitrous oxide to the atmosphere concentrations.

4 Dec 2014

Single Carbon Emission Can Reach Maximum Effect Within 10 Years

The climate warming caused by a single carbon emission takes only about 10 years to reach its maximum effect. This is important because it refutes the common misconception that today's emissions won't be felt for decades and that they are a problem for future generations.

3 Dec 2014

Critical Ozone ‘Feedback’ Factor Could Be Missing in Calculations of Future Global Warming

Many of the complex computer models which are used to predict climate change could be missing an important ozone 'feedback' factor in their calculations of future global warming, according to new research led by the University of Cambridge and published today (1 December) in the journal Nature Climate Change.

2 Dec 2014