"Climate change does very likely increase the associated rainfall," she said, adding in some locations Harvey's rainfall may approach 50 inches, or 1.2 metres, and that the U.S. National Weather Service had to introduce a new colour on its graphs to deal with the volume of rain.
"Climate change doesn’t cause tropical cyclones. They’ve always been there. The relationship between climate change and the frequency of hurricanes and tropical cyclones is not clear, there’s still a lot of research going on into that," Nullis said.
US President Donald Trump plans to visit Texas on Tuesday.
In June, Trump announced the United States would withdraw from the Paris climate change pact, drawing international condemnation. This month he rolled back environmental regulations on government-funded building projects in flood prone areas as part of his proposal to spend $1 trillion to fix ageing US infrastructure.
-Reuters