Environment: Content from Across the ABC


Date/Time 14 Mar 2014 7:30:51am
Sceptics accept that the greenhouse effect is real but they do question just how much warming it will cause (see my comments elsewhere above).

As for your "long-term warming trend", you don't specify the period of time being considered. Around 1850, the start point for the CRU's temperature dataset, the world started coming out of a Little Ice Age, and golly, the temperatures rose. Fancy that!

More recntly, even the Climatic Research Unit, the keepers of the most commonly quoted temperature dataset, have said that there's been no statistically significant warming in 15 years.

What's particularly telling about the latter is that the amount of CO2 in the atmosphere rose significantly in that time.

An increase in CO2 but no increase in temperature. Do I need to spell it out for you? The notion of manmade AGW is refuted by observational data .. regardless of anything a long term trend might say.