When it comes to the causes of Hurricane Harvey, climate change is not a smoking gun. However, there are a few spent cartridge cases marked global warming in the immediate vicinity. Hurricanes are complex, naturally occurring beasts and extremely difficult to predict, with or without the backdrop of rising global temperatures, the scientific reality of attributing a role to climate change in worsening the impact of hurricanes is also hard to tease out simply because these are fairly rare events and there is not a huge amount of historical data. But there are some things that we can say with a good deal of certainty. We can say for every extra degree Celsius in warming, the atmosphere can hold 7% more water. This tends to make rainfall events even more extreme when they occur. Harvey has been the worst Hurricane in history yet. It has over top Hurricane Catrina. Harvey is a devastating event and I hope for the best for Houston.
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People do not understand that global warming is a growing threat. 2016 has been recored as the hottest year, surpassing 2015. Trump administration has a choice of denying and ignoring a document of 673 pages of thousands of findings of climate change that has been mandated by Congress in 1990. The document had been posted on a private Internet Archive in January when scientists feared Trump would stop all climate research. The document spoke about how global warming really could be deadly. There is a "very high level of confidence" that global warming is indeed responsible for temperatures rising and extreme precipitation.
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