BBC News "Editors' pick" comment suggests that "nearly everyone" may be dead in 20 years if we don't do something about global warming

BBC News - Arctic ice melting at 'amazing' speed, scientists find

Seems simple to me:

1. Do something
2. Do nothing

In 20 years time we will look back and say either

1. "Well that was a waste of time - knew nothing would happen" 2. "Can't believe we did nothing & now nearly everyone is dead"