"Moreover, there is substantial scientific evidence that increases in atmospheric carbon dioxide produce many beneficial effects upon the natural plant and animal environments of the earth.”
So it seems that there is agreement that human activity has an effect upon the earths climate?
your conclusion would only be true if the bulk of carbon dioxide came from man. what they say, if you read closely, is that man created 90+ % of the excess CO2 in the atmosphere. the key is in the word 'excess'. what the heck is that?
The "bulk" of carbon dioxide is the natural carbon cycle.
In 1850, atmospheric carbon dioxide was about 280 parts per million (ppm), and today it is about 385ppm
So it is being claimed that the increase in atmospheric carbon is simply due to the earth warming up, but I thought it was being claimed that the earth was not really warming up. Now how can that be?
The historical events of the "Little Ice Age" and "Medieval Warm Period" are often brought into the argument. The problem is that these were not global events.
There is also an argument about 1,500 year cycles.
The problem with these arguments is that there are some good biological records going back a couple thousand years with the bristlecone pine. And atmospheric records of 100,000 years trapped in the Greenland ice sheet.
In the ice sheet samples, there are records of CO2 levels fluctuating over the tens of thousands of years, but these ancient fluctuations were only in the tens of parts-per-million.
The geologic record interpretations use carbon isotopes that relate to atmospheric carbon. Geologists claim that during the Carboniferous and Permian periods (250-300 million years ago), atmospheric carbon levels were higher than they are at present time.
Clean, cheap, efficient, and plentiful power generation is easily available through nuclear power. The oil companies have done more behind the scenes to stop nuke plants from being built than all the protesters and regulators combined.
Can we control carbon in the atmosphere? No. It is too late. All of the foolish nonsense about carbon-trading &c won't amount to a p-hole in the snow. We've got to live with what we have.