'Your papers, please' must never be heard in America
Independent voices from the TWT Communities
The worst U.S. drought in decades has deepened again after more than a month of encouraging reports of slowly improving conditions, a drought-tracking consortium said Wednesday, as scientists struggled for an explanation other than a simple lack of rain.
requires looking at how much moisture an area has received, how much soaked into the ground and the impact on agriculture, said Richard Heim, a climate scientist at the National Climatic Data Center who helps draft the
"It takes a while for that moisture to percolate down, especially if it's been dry for a long time," he said.