It is now nearly 40 years since the science was probably more than 90 per cent settled - and if we had listened to these scientists and acted we would now be comfortably reversing our climbing temperature.
Why aren't we? Money and greed. Big Oil spent billions of dollars on denying the facts they already accepted as proven! More money was more important than anything else.
This attitude still exists, Just look at the adverts for new vehicles, predominantly bigger SUVs and top-end cars - gas guzzlers all.
It is complete arrogance to assume our current economic system developed over a few millennia is superior to the highly evolved and interdependent eco-system that planet Earth has been evolving for billions of years.
To use the Mother Earth metaphor, we have been sucking on the tits of our planet for so long that she can't replenish and is literally fading away in front of our eyes. She may finally chuck the greedy, lazy infant off, hopefully in time for her to replenish herself and the other less greedy inhabitants.
This Earth was not created just for us to desecrate. if we chose to ignore our part in the interdependent ecosystem, Earth will show us out.
The solution is in our grasp but our inability to recognise the effects and urgency of our (Earth's) crisis must be a negative trait of humans.
• John Milnes is a past Green candidate and founding member of Sustainable Whanganui. He is passionate about the environment and frustrated by our human foibles.