Archive by date | September 2009

Wonder weed plans fail to flourish

Wonder weed plans fail to flourish

This week in Nature you can read the first (subscription) of four articles unpicking the business of biofuels. First up is jatropha – the shrub that promised to give drought-ridden countries boundless oil supplies. The reality has turned out to be somewhat different. After a period of hype and over enthusiasm, investments have dried up, somewhat like the promise of oil from arid land.  Read more

Climate change warning from Greenland

The Greenland ice sheet melted much more rapidly as a result of warmer temperatures in the recent past than previously estimated, a team of international scientists has revealed. They warn that future warming could have more dramatic effects on the ice than researchers have assumed. The research is from this week’s Nature and there’s a news story about it over at Nature News.  Read more

Plan B for Copenhagen

“smoke.bmp”The United Nation’s upcoming climate summit in Copenhagen threatens to get caught in a trap between high expectations and the immense complexity of the task at hand, warns the author of an opinion piece in Nature today [subscription]. Since diplomats cannot possibly produce a useful treaty for the December meeting in the remaining twelve weeks, negotiations should focus on a small number of realistic goals, and leave the rest for later, says David Victor, an expert on international relations at the University of California in San Diego.  Read more

Sunburnt Southern Hemisphere in 2095

Sunburnt Southern Hemisphere in 2095

Global warming doesn’t just change the weather, it also affects the ozone layer. According to a detailed new modelling study, by 2095 the springtime UV index (UVI) could go up by as much as 20% on the southernmost section of the planet, as altered atmospheric circulation pushes more stratospheric ozone into the Northern Hemisphere. That’s nearly half the UVI increase caused by ozone-eating pollutants in the late twentieth century – but coming from climate change alone.  Read more

Interview: Dieter Helm

Interview: Dieter Helm

Oxford economist Dieter Helm co-edits an upcoming book, The Economics and Politics of Climate Change, that he says takes “a colder and harder look at the challenge”. In a Q&A on Nature Reports Climate Change this week, Helm gives his take on a long-term strategy for reducing emissions. Here’s an excerpt:  … Read more

WCC-3: Global ‘climate services’ framework agreed, but long process ahead

Heads of state agreed yesterday in Geneva to establish a global framework to deliver climate services to society. “We agreed on the need for climate services across all nations”, says Martin Visbeck, chair of the committee of scientific experts to the World Climate Conference.  Read more