Environmental concerns

I read two articles online today which makes me think about the impact humans are having on the environment.

There's no doubt the earth is hotting up and if nothing is done about the carbon emissions from coal plants and other human industrial activity the earth and life on earth will be doomed in 50 years.

The other disturbing thing I read is that the Earth's fishing supplies are declining. The Japanese are blaming whales for the decline and using this to condone 'scientific research' (i.e. slaughter).

Scary stuff, I'm going to stop eating beef to ensure that the Amazon isn't cut down for more cattle grazing grounds.