Will Europe be like this by 2040?

Image by pietroizzo

Josesph Romm airs this issue in Climate Progress. Is Lovelock right to claim that 'by 2100, the Earth`s population will be culled from today`s 6.6 billion to as few as 500 million'? Are we really like 'the passengers on a small pleasure boat sailing quietly above the Niagara Falls, not knowing that the engines are about to fail'?

So your views please! Do you think we're doomed? Do you believe Lovelock is absurdly pessimistic? Are there grounds for optimism? What are those grounds?