RE: Global warming, facts pls
July 29, 2014 at 10:23 pm
(This post was last modified: July 29, 2014 at 10:30 pm by The Grand Nudger.)
Quote:The Earth does go through natural cycles of warming and cooling, caused by factors such as changes in the sun or volcanic activity. This has been closely examined, and the warming we have seen in the past 50 years cannot be explained by natural factors alone. [5] This figure illustrates one piece of evidence that shows that recent global warming is primarily a result of greenhouse gas emissions from human activities.
http://www.epa.gov/climatechange/basics/facts.html
Quote:The Earth's climate has changed throughout history. Just in the last 650,000 years there have been seven cycles of glacial advance and retreat, with the abrupt end of the last ice age about 7,000 years ago marking the beginning of the modern climate era — and of human civilization. Most of these climate changes are attributed to very small variations in Earth’s orbit that change the amount of solar energy our planet receives.
The current warming trend is of particular significance because most of it is very likely human-induced and proceeding at a rate that is unprecedented in the past 1,300 years.1
http://climate.nasa.gov/evidence/
I think what I see here (on the forums), is that there's this idea that it has to be either one or the other, natural or man-made. What has folks worried, is the combination of the two. This rock doesn't need any help when it comes to giving us shit. Does this mean climate-apocalypse? Probably not. But it will be disruptive.
(try any of the sources in either link)
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