It was reported in 2013 October that Heather Zichal, the climate change advisor and energy advisor in the USA, is giving up her position. I believe that she was overworked due to understaffing, and could therefore not keep up in the long term with progress and ideas in the rest of the world. President Obama this year expressed a hope that the USA would lead the world on climate change action, but China continues to be well ahead on the climate change front, with 25,000 of the world's 50,000 largest dams storing water for climate change droughts, and a "great green wall" of tree belts to slow global warming desertification in China. This year in 2013, China has built the world's fastest computer, Tianhe-2, with enhancements for climate change calculations, and is now experimenting with a atomic reactor that according to bbc.com "could enable thorium to be used much more safely than uranium", ultimately better enabling atomic power to reduce worldwide carbon use.
I heard she couldn't stand the heat, so she got out of the global climate business.