There are a few key points in the article above.
1. IPCC says carbon dioxide has gone up 40% since the beginning of the 20th century.
2. Climate Change is always changing. What’s different now is the rate of change-and the reason behind it.
3. When we put it all together…we find that now it’s unequivocal: “Human influences has warmed the climate,”said Nathan Gillette.
There is a good deal more discussion about this early next year when the next two chunks of IPPC report, looking at adaptions and mitigation.