… Yale University has committed to reducing its greenhouse gas emissions by 43% below 2005 levels by 2020 and achieving carbon neutrality by 2050. Using carbon offsets enables … Yale University has committed to reducing its greenhouse gas emissions by 43% below 2005 levels by 2020 and achieving carbon neutrality by 2050. Using carbon offsets enables … Yale University has committed to reducing its greenhouse gas emissions by 43% below 2005 levels by 2020 and achieving carbon neutrality by 2050. Using carbon offsets enables …