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Leaders of the world’s 20 richest nations “missed an opportunity” to kick start the green economy in their efforts to arrest the global financial downturn at a summit in London yesterday.

Science and green leaders expressed “disappointment” at the G20 summit’s failure to include a commitment to spend a proportion of the agreed $1.1 trillion financial injection to resuscitate the global economy on a low carbon stimulus package.

The meeting’s final agreed statement on actions to take forward leaves mention of climate change and low carbon technologies to the final paragraphs. It says, “We agreed to make the best possible use of investment funded by fiscal stimulus programmes towards the goal of building a resilient, sustainable and green recovery. We will make the transition towards clean, innovative and resource efficient, low carbon technologies and infrastructure.”

The statement adds that world leaders “reaffirm” commitments to address climate change and to reach a deal at the UN climate change conference in Copenhagen in December.

Responding to the outcome, Martin Parry, past co-chair of the IPCC’s working group II on impacts, adaptation and vulnerability, told Nature, “The statement on climate change looks like an afterthought and appears to restate commitments that have already been made.”

David King, chief scientific advisor to the UK government from 2000 – 2007 and a vocal campaigner on the need to tackle climate change, told Nature that world leaders had “missed an opportunity” to integrate the recovery of the world economy with the future sustainability of the global financial system.

Camilla Toulmin, director of the International Institute for Environment and Development, an independent research organisation based in London, UK, told Nature, “There was very little recognition of the real crunch issues of climate and natural resources. It could be really damaging to restart the global economy on the same line as we left it.”

World leaders agreed to a further G20 meeting later this year, to review progress made on goals set at the London summit. Read the full story on Nature News [subscription].

Natasha Gilbert

Posted by Olive Heffernan on April 03, 2009
Categories: Conferences and Meetings, Economics, G20 London Summit, 2009, Natasha Gilbert, Politics, Technology | Permalink | Comments (0) | TrackBacks (0)

The recent food crisis, which saw crop prices sky rocket in 2007/08, demonstrated the fragile nature of the world’s food system. Coping with the short-term challenges of food price volatility is daunting, but the longer-term challenge of avoiding a perpetual food crisis due to global warming could be far more serious.

Temperatures in crop growing seasons across the world will exceed the most extreme seasonal temperatures on record by the end of the century, new research suggests.

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Writing in the latest issue of Science, David Battisti at the University of Washington and Rosamond Naylor at Stanford University warn that unprecedented seasonal average temperatures will threaten global food security unless adaptations such as heat and draught tolerant crops, the creation of jobs outside of agriculture for those regions where farming will no longer be viable and appropriate irrigation systems are introduced.

In a new study, they use data from 23 global climate models produced for the Intergovernmental Panel on Climate Change’s 2007 scientific analysis to show that there is a 90% chance that the tropics, sub-tropics and temperate regions will experience unprecedented seasonal average temperatures by the end of the 21st century.

Their research looks at historical case studies of three regions – France, the Ukraine, and the Sahel in Africa – that have experienced extreme heat waves, to illustrate the size of the impact on food production. For example, France felt some of the greatest impacts of the 2003 heat wave in Western Europe, which saw temperatures rise to 32 -33°C in June to August - nearly 4°C higher than the country’s average historical temperature for those months. Over this period, production of maize fell by 30%, fruit harvests declined by 25% and wheat harvests dropped by 21%.

Continue reading "Adaptation needed to avoid world food crisis" »

Posted by Olive Heffernan on January 08, 2009
Categories: Adaptation, Features, Journal Club, Natasha Gilbert, Society | Permalink | Comments (2) | TrackBacks (0)