The issue focused on carbon dioxide emissions from fossil fuels is perhaps most influential for scientists who study climate change. While news organizations often rely on scientific articles on climate change to publish research findings, here are two facts about carbon dioxide emissions from fossil fuels that suggest they may have important implications for understanding climate change: (1) carbon dioxide emissions from fossil fuels were relatively low over the past century and had limited impacts on climate change at all time periods in which they were occurring; (2) carbon dioxide emissions from fossil fuels were