Re-broadcast from June 22, 2012: In a state as big as Texas, there are some serious questions about how to provide this vital resource to the over 25 million people who live here. Our state thinks of itself as strong and independent, often distancing itself (with the help of state lawmakers) from the federal government, but how much of Texas has crept into national politics?
Originally published on Fri November 23, 2012 12:53 pm
Scientists who study forests say they've discovered something disturbing about the way prolonged drought affects trees.
It has to do with the way trees drink. They don't do it the way we do — they suck water up from the ground all the way to their leaves, through a bundle of channels in a part of the trunk called the xylem. The bundles are like blood vessels.
When drought dries out the soil, a tree has to suck harder. And that can actually be dangerous, because sucking harder increases the risk of drawing air bubbles into the tree's plumbing.
A look at what drives the swing vote of the Latino Evangelical electorate, also Californians will vote on whether to impose harsher penalties for sex traffickers. After some sluggish years, NAFTA creates border boomtowns. And why some people are seeing more bears come to town.