Guardian: World leaders cannot use the global recession as an excuse to delay action on climate change, according to leading economists. In a new analysis they predict that the economic downturn will cut carbon emissions by 9% by 2012 and delay the onset of "dangerous" climate change by just 21 months. The report, published today by the ESRC Centre for Climate Change Economics and Policy, compared economic forecasts made before the recession with revised estimates that incorporate the …