
A woman in a kayak paddles down a Houston road flooded in late August by rains from Hurricane Harvey.
The devastation that Hurricane Harvey caused the city of Houston was still in the news when Hurricane Irma struck several Caribbean islands before grazing Tampa, Florida, and Hurricane Maria rocked Puerto Rico. Out of the glare of the international media, extreme rainfall in eastern India caused even greater damage, killing more than 1,000 people. And these were only the latest of many flooding disasters in recent years, such as those in Wuhan, China, in 2016, and in Chennai, India, and Columbia, South Carolina, in 2015. Global warming did not birth these storms. Climate change does, however, act as a "threat multiplier," as U.S. defense policy has described it. The most recent report from the Intergovernmental Panel on Climate Change (IPCC) asserts that, going forward, climate change will make bigger storm surges, rising sea levels, heavy precipitation events and extreme heat waves "very likely" and will make more intense hurricanes "likely.