جزئیات کتاب
فرمت
کتاب الکترونیکی
زبان
انگلیسی
منتشر شده
Oct 14, 2010
ناشر
Smashwords Edition
ISBN-10
1452378800
ISBN-13
9781452378800
توضیحات
A warmer good or bad? The icy polar regions would thaw. But would hotter parts of the world dry up? In the past they didn't. Five periods in the last half-million years were warmer than today. Each time the Sahara got more rain and turned to lush grass. When Earth warmed up the forests bloomed and the deserts shrank. But when Earth got colder the deserts expanded and the trees died back.