I finished reading
the world without us. This book is very good. Go and get it from your local library, or, if you are extremely forgetful or simply anal about owning books, go and buy it. It is about how the world would change if every human vanished, leaving everything behind. It goes into how houses rot and fall down, how our selectively bred livestock would rapidly get eaten by predators without farmers to protect them, and de-evolve back to their original form. Most interesting, and most disturbing, was the description of most plastic eventually ending up in the ocean, in a huge vortex, spanning a thousand miles in the Pacific Ocean - the great pacific rubbish dump. Because addition polymers are a new thing that nature has never seen before, every bit of plastic every created is still somewhere on the planet, lying in landfill until it's blown out to sea. Once in the sea, it's battered down in the same way rocks are battered down to sand. The oceans are filling with tiny bits of plastic, suspended in the water, some of it small enough for even zooplanktoon to swallow, killing them quickly.
So. Interesting. Read.