According to a new study, reducing GHG emissions could save 500,000 lives by the year 2030 and between 800,000 and 1.8 million lives by the year 2050. Taking into account the linkage between air quality and human health, and how far air pollutants travel around the globe, scientists have concluded that slowing climate change will reduce mortality related to exposure to fine particulate matter and ozone. As an added bonus, the scientists also estimate that "the global average benefits of avoided mortality are $50-380 per ton of carbon dioxide."