How do scientists study climate change?
This is a rather ambiguous question, but here is one perspective:
Scientists study a broad range of issues in multiple disciplines of science, but an issue that scientists have particular focus on especially in the field of Environmental Science would be global climate change since many scientists would argue that it is one of the most pressing issues facing our planet.
Additionally, there is much to study when it comes to climate change. There are many different effects associated with it from rising sea levels, ocean acidification, extreme weather events, and many more that we don't know yet.