Question

why are there different theories about the effects of global warming? a. there is no data to support global warming. b. global climate is complex, so changes in global climate are hard to predict. c. increased levels of carbon dioxide are offset by other changes. d. there has been a decrease of extreme weather. please select the best answer from the choices provided

Explanation:

Global climate is a complex system with numerous interacting factors, making it difficult to accurately predict changes. This complexity leads to different theories about the effects of global warming. Option a is incorrect as there is ample data supporting global warming. Option c doesn't fully explain the different theories. Option d is contrary to the observed increase in extreme - weather events.

Answer:

B. Global climate is complex, so changes in global climate are hard to predict.