Global Warming Trends
By: Julie Kerr Casper, Ph.D.
The Earth’s climate is always changing. The most obvious changes that have taken place over the course of geologic time are the shifts from glacial (ice age) periods to interglacial (non–ice age) periods. The Earth has had several “ice ages” throughout time, during which ice covered large portions of the Earth’s surface, then melted back to nearly nothing. Scientists know the Earth’s climate is always naturally changing, but with the amount of human interference today, the questions have become: How are humans changing it? Are they endangering the future? And what will the Earth be like for our children, grandchildren, and future generations? These are the very issues that I would like you the reader to ponder as you gain insight into the problem. What long-term effects will our current decisions and lifestyle choices have on future generations?. [download]
Format : Ebook.Pdf
Tidak ada komentar:
Posting Komentar