I can say two things right off the bat about Paolo Bacigalupi.
First, he’s a solid writer with a great imagination. Unlike lots of science fiction, his stories are well-crafted and well-written for the most part. I enjoy his prose.
Second, Jesus FUCK what a downer this guy must be at parties. I kid; I have no actual idea. What I do know, though, is the bleak vision he has for the near-ish future. Bacigalupi’s stories take place generally in a world not far removed from our own, and extrapolate from current trends to produce a vision that’s disturbingly viable. A few of them in this collection take place in the world he created for his 2009 novel The Windup Girl; therein fossil fuels are exhausted or otherwise nonviable. Food energy and genetic engineering created the fallback position where springs and gene-hacked elephants are used to run machines. The world is dominated by the big “Calorie Companies” — ie, the agribusiness concerns that control the food supply with sterile GMO seeds and bio-engineered plagues created to destroy the naturally occurring foodstocks.
It’s not a happy place, to say the least, but it’s not his only disturbingly plausible future scenario. Pump Six comes with several other futures, and none of them are optimistic in the least (the title story posits a future that makes Idiocracy look upbeat, for example). This is not to say that you shouldn’t read the book (or Windup for that matter); they’re really well done. But you might need a unicorn chaser afterwards.