There once was a planet called Earth,
Then, 4.5 billion years after birth,
It evolved a new species,
From DNA pieces,
That polluted for all they were worth.
This continued 'til everyone felt,
The impact of arctic-ice melt,
A global nightmare,
(Or full of hot-air?)
For many, disaster was spelt.
The science said 350 per mil,
Was the most CO2 we could spill,
If it grows any more,
We'll see famine and war,
Our chances? Effectively nil.