By 'at best, the results point to the least change people can expect', (Paragraph 3) the researchers try to tell us that
A.the impact of climate change is relatively minor.
B.the global warming is inevitable in the near futurE.
C.concentrations of greenhouse gases cannot be held steady.
D.the atmospheric conditions will be better than people think.

A.the
B.
B.the
C.
C.concentrations
D.
D.the