In the Copenhagen Accord of December 2009, developed countries agreed to provide start-up finance for adaptation in developing countries and expressed the ambition to scale this up to $100 billion per year by 2020. The financial mechanisms to deliver this support have to be tailored to country...

This note highlights a major reason to limit climate change to the lowest possible levels. This reason follows from the large increase in uncertainty associated with high levels of warming. This uncertainty arises from three sources: the change in climate itself, the change’s impacts at the...

This paper discusses the growth model with environmental constraints recently presented in (Acemoglu et al., 2011) which focuses on the redirection of technical change by climate policies with research subsidies and a carbon tax. First, Acemoglu et al.'s model and chosen parameters yield...