Global warming has created a feedback loop, wherein Arctic sunlight converts thawing ice into more CO2.
55 million years ago, as the Earth heated up, many mammal species got smaller. Could the same thing happen again with human-induced global climate change?
Scientists and University of Colorado, Boulder may have come up with a way to make hydrogen fuel cleaner.
The greenhouse effect is not the only man made mechanism responsible for things heating up. Scientists have found that snow is also responsible.