I'm interested in the Harvard-China Project's research. Can you tell me what chemical transport model they use for East Asia air pollution studies? Also, please summarize their other main research areas beyond climate change and air pollution, as presented on their primary research page.
Navigate to the 'Research' page. Under 'Climate Change & Air Pollution', click on 'Atmospheric and Climate Modeling'. Identify the name of the chemical transport model used for East Asia air pollution studies. Return to the main 'Research' page. Identify the other main research areas listed on the 'Research' page, excluding 'Climate Change & Air Pollution'.
State that the chemical transport model used for East Asia air pollution studies is a nested-grid version of GEOS-Chem. List 'Renewable-Based Power Systems' as a key research area. List 'Transportation, Industry & Building Decarbonization' as a key research area.