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Politics : The Trump Presidency -- Ignore unavailable to you. Want to Upgrade?

To: TimF who wrote (68297)	4/24/2018 11:27:04 PM
From: Wharf Rat	Read Replies (2) \| Respond to of 358784

"The great hurricane of 1780 was a lot more catastrophic then Maria. " Did people lose their electricity before the Weather Channel had a chance to tell them to move to high ground? "Maria is a hurricane, not global warming. " She is. You can tell because canes are named after boys and girls, and global warming events get stuck with strange sounding scientific terms like Paleocene-Eocene Thermal Maximum and Anthropogenic Global Warming. Global warming means the air holds 7% more water vapor per degree C, so there's more available to rain out. From my link, Scientists say the extreme rainfall events that feed these floods are on the rise for many parts of the world, and this year’s hurricanes fit that trend. In particular, rising temperatures in the ocean and the air alongside booming construction in vulnerable areas are fueling the increased risk from massive deluges. Levels of rain that statistically happen once every five years are on the riseOf the seven hurricanes this year so far, Harvey, Irma, and Maria stand out not just for the amount of rain they dropped, but for how fast they dished it out. Why hurricanes under warmer conditions can dump so much rainDownpours go hand in hand with hurricanes, since the cyclones are powered by evaporating and condensing moisture. Warm ocean waters provide the fuel for hurricanes, and warm air causes the water to evaporate. This moisture-laden air then precipitates as rainfall during a hurricane, dissipating the heat energy from the water. “Tropical cyclones are very, very good at converging a whole lot of heat in one place at one time,” said Kossin. Air can hold about 7 percent more water for every degree Celsius increase in temperature, Kossin explained. That means warmer air and warmer water could lead to larger, more intense hurricanes, which in turn lead to more rainfall. (The Saffir-Simpson scale only accounts for windspeed, but precipitation is closely linked to a storm’s intensity.) Scientists are studying these links to understand how future storms will respond to these conditions. “Hurricanes live and die by the amount of rainfall they make out of moisture,” said George Huffman, a research meteorologist at NASA Goddard Space Flight Center. But where that water lands depends on the speed and the course of the storm, and not all areas are equally vulnerable. “We know that in particular that [the regions around] Houston, Louisiana, and Florida are prone to some of the most extreme precipitation events in the United States,” said Sarah Kapnick, a researcher at NOAA’s Geophysical Fluid Dynamics Laboratory. “We do see signs of precipitation extremes increasing in these regions.”