There is a lot we know about climate change, but there is also a lot we don't know. Even if we knew how much CO2 will be emitted over the coming decades, we wouldn't know how much temperatures will rise as a result. And even if we could predict the extent of warming that will occur, we can say...

This study examines the relation between climate policy uncertainty (CPU) and corporate tax avoidance. Using a novel measure of CPU, we document that CPU is negatively related to effective taxes rates for both contemporary and future years. During higher levels of CPU, firms undertake aggressive...