Pump Six and Other Stories by Paolo Bacigalupi

Bacigalupi  is a seriously talented writer and this collection of short stories shows off his skill. Most of these stories share the common theme of a future ecological catastrophes but they are about more than that. Really they are about how humans respond to these circumstances. For the most part the answer is depressing with haves and have nots, oppressors and oppressed. There are some very dark stories here such as the tale of future world where science has given the gift of immortality to all but the price of this boon is that new children are  tracked down and ruthlessly executed.

Also of note is that there are two stories set in the  gmo enthralled world of Bacigalupi's excellent novel: "The Windup Girl".

The Windup Girl by Paolo Bacigalupi

Terrific first novel set in a grim future world after the contraction which follows the end of the oil fueled expansion. Not only is this world forced to rely on pre-industrial energy sources it had also been driven to the brink of starvation by genetic experimentation gone wrong. Most of the world relies on US controlled genetically modified produce for survival but the kingdom of Thailand has managed to remain independent with it's own seed bank. There is a host of other good stuff in here and the book is strongly recommended.