Today marked the beginning of a week-long effort to raise awareness about the environment in honor of Earth Day. There will be events all week long that will focus on such topics as water access, food sustainability, and carbon emissions. You might have noticed a 32-foot-tall balloon on the Main Green today. This balloon represented one ton of carbon dioxide. Through the Divest Coal and Do It In The Dark campaigns, Brown actually reduced its CO2 emissions by 5 tons, enough balloons to fill up a substantial part of the Main Green. Read after the jump to embrace your inner tree-hugger and see what events are lined up for the week.