"Unless the burden of poverty in developing nations is alleviated by significant financial support for mitigation, adaptation, and the reduction of deforestation, the ability of developing countries to pursue sustainable development is likely to diminish, to the economic and environmental detriment of all, " the scientists said.

BBC: G8 leaders to set emissions goals

Malaysia's central bank governor Zeti Akhtar Aziz highlighted the ability of infrastructure development to support global economic activity, but also stressed the need for such projects to be carefully managed, given the risks involved.

WSJ: World Bank Mulls Global Infrastructure Facility

But microfinance is a reminder that the ability to borrow is a crucial part of economic development.

BBC: Lessons from microfinance

But we also think that it is important for us to explore new mechanisms so that we can have goods and services, and economic development, and the ability of people to start their own businesses, and to grow the economy and provide opportunity within Gaza.

WHITEHOUSE: President Obama Meets with Palestinian President Abbas