Within the next century, hotter weather in Central Texas will lead to longer droughts, the amount of water making its way into the Edwards Aquifer will drop, crops may wither, and the tree line that divides lush East Texas and bone-dry West Texas — it now sits just along Interstate 35 — might push east. Austin, in short, could start looking a lot like San Angelo. Those predictions are part of a report on global warming and Texas published today by Environmental Defense, an advocacy group. The report's authors say they wrote the report to urge lawmakers to make rules...