Holly wrote:So what about all the farting cows?
Methane is an important trace gas in Earth’s atmosphere. Even though it only makes up 0.00017% (1.7 parts per million by volume) of the Earth's atmosphere, methane traps a significant amount of heat, helping the planet remain warm and habitable.
In Earth's early history, methane was far more abundant, several percentage points of the total atmospheric gases. Without methane it is unlikely that life as we know it would have existed.
Like I said in an earlier post, in the 1970's the concern was 'global cooling' and the fear we were entering another ice age. Of course, there is no financial gain to be made from global cooling, even though it would be far more disasterous for mankind than global warming, so a change was engineered to completely reverse the fears, for purely financial gain.
Here in the UK temperatures have been a lot warmer than they are now and colder too. The Romans grew grapes in the fortified towns along Hadrians Wall and we had ice fairs on the frozen Thames in the early 19th century.
Fluctuations occur and have occurred forever, we live in a flucuating era, that is all. Mankind had nothing to do with them before and haven't now.