kokonut
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Why not both? Mankind can only learn to live with it, otherwise we will be just a flash in the pan like the dinosaurs.
It is both. Earth has had both ice age and warm phases but we are experiencing an unusual long warm phase after our last ice age some 13,000 years ago when ice sheets began retreating from the United States (geographically speaking). Past geological history show that past warm phases lasted at best several hundred years. We're in our like 12,000th year of warm climate - relatively speaking.
Dinosaurs been around for few hundreds of millions of years. Humans? We are in that "flash in the pan" period right now, not even come close to cracking 1 million years.