International

"Atmospheric levels of methane, 20 times more powerful than carbon dioxide (CO2) at trapping heat, stayed steady for two decades to 2006 on wider fertilizer use to grow rice or a surge in natural gas demand, according to two separate studies in the journal Nature.

Climate researcher Fuu Ming Kai from the Massachusetts Institute of Technology's Singapore research center said in one study that methane output from rice fields in the Northern Hemisphere dropped during the period as fertilizers replaced manure and because of reduced water use.

"Only a year ago Russia was overwhelmed by an exceptional heat wave, triggering hundreds of fires that destroyed thousands of hectares of woodland. Burning peat bogs around Moscow stifled the city in a thick cloud of bitter smoke."

"Releasing genetically modified, spermless male mosquitoes into the wild could in future help to prevent malaria transmission and reduce the chances of large outbreaks of the killer disease, British scientists said on Monday."

"Bangladesh's Supreme Court agreed on Monday to allow ship breaking yards more time to meet tougher safety and environmental rules, allowing them to operate until at least mid-October.

Judges backed a lower court's ruling two weeks ago that extended the deadline for the $1.5 billion ship scrap industry to implement strict government rules aimed at protecting workers and reducing the level of pollution.

A Stanford professor is showing how many more ecological costs need to be factored in to estimates of the economic impacts of environmental actions.

In the days after the Fukushima nuclear meltdown began, Japanese officials let evacuees go into areas of high radiation, downplaying and withholding information about the danger."

"Carbon offsets neared all-time lows Friday, confirming their status as the world's worst performing commodity, as slumping demand meets rising supply of the U.N. instrument traded under the Kyoto Protocol."

The battle over a coal export terminal near Bellingham, Washington, is a symptom of a profound shift in world economic roles.

"Major climate talks in South Africa at year-end will be unlikely to strike agreement on a new pact, but will be important in determining the shape of long-term efforts to tackle climate change, a senior U.N. climate official said on Tuesday."

"Japan will sack three top energy officials over their handling of the Fukushima atomic disaster and scandals that have fuelled public mistrust in the country's nuclear policy, the government said Thursday."