ot greta thunberg

[rolymiller]

The science says that the carbon dioxide particles in the air reflect radiated heat from Earth's surface back into the Earth's atmosphere (the greenhouse effect). This simple theory ignores the fact that each molecule of carbon dioxide reflects back into space an equal and opposite amount of radiated heat from the sun - the real source of global warming.

The number of carbon dioxide particles in the air is miniscule compared to the number of atoms of oxygen and nitrogen and molecules of water vapour which make up the vast majority of the content of the atmosphere.

The real 'greenhouse gas' component in the air is water vapour. I remember our geography teacher Fred Kemp describing it as like a blanket when you are in bed. He was talking about water vapour in its natural form of clouds.

Of course, that is how it works at night, but in daytime the clouds reflect back into the atmosphere far more heat from the sun than they reflect back to the Earth's surface. But think about how much water vapour is in the atmosphere compared with carbon dioxide.

Plants need carbon dioxide to grow. Cutting back the carbon dioxide in the atmosphere will reduce crop yields at a time when we need to increase yields to feed the growing human population every one of whom exhales a considerable amount of carbon dioxide every year. I can see the answer formulating in some people's minds!

I'm no scientist Much but isn't methane a large contributor to global warming and while accepting your arguments about growing more plants don't rotting plants give off more methane emissions?

Whilst not always seeing eye to eye with Mr Kerr, i think he has a valid point about meat production and particularly cattle which contribute a lot to the amount of greenhouse gas we have.

With regard to fossil fuel i believe we need to help developing countries with cleaner technology to help combat emissions.