A small number of scientists disagree that global climate change is caused by human activity. However, scientific consensus supports the idea that human activity is affecting climate. This is possible because
Answer
scientific consensus does not require the agreement of all scientists.
Option
the idea is an emerging scientific idea that has not been tested repeatedly.
Option
the idea that global climate change is caused by human activity is a scientific theory.
Option
scientific consensus does not require a large number of scientists to support an idea.