This article, by James Palmer and Prof. Michael Mainelli and part of the London Accord, is intended to provide an illustration of the application of portfolio modelling to climate change investment. For more information go to www.london-accord.co.uk

(Washington, February 9, 2009) – Over 50 of the world’s leading scientists, China experts, political and business leaders recommend immediate action to create a new, groundbreaking collaboration with China to address the urgent issue of climate change.  In a report released today by Asia Society’s Center on U.S.-China Relations and the Pew Center on Global Climate Change, these leading figures provide the Obama administration a new policy roadmap for immediate action with China.

The researchers from the Grantham Research Institute on Climate Change and the Environment and the Centre for Climate Change Economics and Policy conclude that about US$400 billion should be spent worldwide on ‘green’ policies and investments which also help economic recovery and lay the foundations of sustainable low-carbon growth. The report, ‘An outline of the case for a ‘green’ stimulus’, points out that this sum represents about 20 per cent of the US$2 trillion, or 4 per cent of global gross domestic product, that governments might spend in the next 18 months on fiscal stimulus packages to lessen the economic downturn.

Among the questions this Tomorrow's Company report asks is if companies are prepared for the scale of the energy revolution in prospect whether the system should be updated to take more account of emerging risks of runaway climate change as well as the widely accepted evidence of global warming - and if so, whether business should be proactive in driving reform? It also looks at what policy frameworks business should work with government to prioritise, so that business can play its full role in building tomorrow's green and clean economy and what the transition to the low-carbon world might cost.

 Climate change is anthropogenic—the product of billions of acts of daily consumption. That solutions need to be anthropogenic too is well accepted. Yet, suggested solutions are normally cast in the realms of finance and technology, often neglecting the primal root of the problem: individual behavior. An emerging body of  social-psychology scholarship has examined the barriers and drivers of individual behavior in relation to both adaptation and mitigation. This paper reviews some of its conclusions, and suggests policy areas that should be considered. This is a Policy Research working paper and has been writen by Andrea Liverani on behalf of the World Bank.