What a great debate. I refer to the ongoing argument on global warming – manmade (anthropogenic) or not?
If man has done (which he has) and continues to do the following:
Taken the world population from one billion in 1800 to seven billion today.
Put nearly 400,000 bits of space junk into near earth orbit during the past 50 odd years.
Created a huge hole in the upper atmosphere (ozone hole) above the South Pole.
And is well advanced in turning the world's oceans into not only a huge rubbish dump, but also an oil cesspit!
He can also increase upper atmosphere greenhouse gases.
It's a proven fact that when these gases have increased so has the planet's atmosphere.
You don't need to be a rocket scientist to understand this. You only need to have a bit of common sense to see we are driving these increases but of course this (common sense) is sadly lacking in today's selfish society.
Few scientists (I quote Brian Fagen's wonderful fact filled book ‘The Great Warming') have no doubt that today's persistent warming is ‘humanly caused and unique'.
In fact I'd go so far as to say if all those sceptics don't pull their heads out of the sand they're going to get drowned as the sea level is rising.
Rob Moores, Tauriko.