Convention on Climate Change adopted an agreement addressing. Greenhouse gas emissions mitigation, adaptation, and finance,.The Paris Agreement is a legally binding international treaty on climate change. GHG emissions target level. The rule achieves a major goal of the Biden Administration to crack down on methane, the secondlargest contributor to climate change after carbon dioxide. Our work focuses on using CAA sections 111 and 115 to control greenhouse gas emissions. Section 115: International Air Pollution. At least 16 states and Puerto Rico have enacted legislation establishing greenhouse gas (GHG) emissions reduction requirements. Our work focuses on using CAA sections 111 and 115 to control greenhouse gas emissions. Section 115: International Air Pollution.