The main culprit causing climate change would be easier understood if we could actually see it. But it is virtually invisible.

That is the exhaust gases from fossil fuel-propelled vehicles. Millions of vehicles pump huge amounts of poisonous gas into the Earth's atmosphere daily and goes unseen because we can't see it, we regard it as harmless.

Yet if we put our noses within 5cm of a working exhaust we would be dead within minutes. If the vehicle exhaust gases can easily kill a human, what amount of damage is done to our atmosphere on a daily basis? By millions of moving vehicles.

We all must try to find a less world damaging way of transporting ourselves around, before the Earth gives up and turns into another moon.

Ken Jones, Katikati.