Scientists study halving hydrogen

Like a hungry diner ripping open a dinner roll, a fuel cell catalyst that converts hydrogen into electricity must tear open a hydrogen molecule. Now researchers have captured a view of such a catalyst holding onto the two halves of its hydrogen feast. The view confirms previous hypotheses and provides insight into how to make the catalyst work better for alternative energy uses.

Report: Increased greenhouse gases and aerosols have similar effects on rainfall

Although greenhouse gases and aerosols have very distinct properties, their effects on spatial patterns of rainfall change are surprisingly similar, according to new research from the University of Hawaii at Manoa's International Pacific Research Center (IPRC) and Scripps Institution of Oceanography. The study is published in the September 1 online issue of Nature Geoscience.

Arctic 'vicious circle' observed affecting greenhouse gases

The widespread decline in Arctic sea ice is causing big changes to the balance of greenhouse gases in the atmosphere, say researchers from Sweden's Lund University.

Carbon emissions tracked to individual buildings

A new software system can map greenhouse gas emissions right down to street level, and even rate particular buildings.

Biofuels not so green after all

The environmental benefits of biofuels are being systematically overestimated, says a University of Edinburgh scientist.

Greenhouse gases hit record high

Despite everything, there are now record quantities of greenhouse gases in the atmosphere, according to UN agency the World Meteorological Organization.

Greenhouse gases continue to rise, says NOAA

The NOAA's latest Annual Greenhouse Gas Index (AGGI) shows that the presence of gases such as carbon dioxide and methane has risen by 29 percent since 1990.

Pole-to-pole flights give new picture of greenhouse gases

A three-year series of research flights from the Arctic to the Antarctic comes to an end this week, completing an unprecedented survey of greenhouse gases in the atmosphere.

Global warming 'could trigger alien attack'

Maybe NASA believes that the little green men really are green - one of its scientists has collaborated on a report suggesting that the Earth's rising levels of greenhouse gases could provoke an alien attack.

Lab-grown meat could slash greenhouse emissions

Growing meat in the lab using tissue engineering techniques could cut the associated greenhouse gas emissions by 96 percent, say University of Oxford and University of Amsterdam scientists.