What do you think?
Rate this book


36 pages, Paperback
First published March 12, 2014
How do scientists know that recent
climate change is largely caused by
human activities?
Scientists know that recent climate change is largely caused by human activities from an
understanding of basic physics, comparing observations with models, and fingerprinting
the detailed patterns of climate change caused by different human and natural influences.
If the world is warming, why are some
winters and summers still very cold?
Global warming is a long-term trend, but that does not mean that every year will be
warmer than the previous one. Day to day and year to year changes in weather patterns
will continue to produce some unusually cold days and nights, and winters and summers,
even as the climate warms.