Hur kan man särskilja människans påverkan på klimatet och den naturliga förändringen? Jag menar, klimatet är ju inte konstant och det kan förändras drastiskt och exponentiellt, så hur vet man precis vad som är den naturliga förändringen och hur mycket människan påverkar?
Tyckte den här artikeln var intressant:
The big picture: 65 million years of temperature swings.
Citat:
If you wonder where today’s temperature fits in with the grand scheme of time on Earth since the dinosaurs were wiped out, here’s the history. We start with the whole 65 million years, then zoom in, and zoom in again to the last 12,000 from both ends of the world. What’s obvious is that in terms of homo sapiens history, things are warm now (because we’re not in an ice age). But, in terms of homo sapiens civilization, things are cooler than usual, and appear to be cooling.
Then again, since T-rex & Co. vanished, it’s been one long slide down the thermometer, and our current “record heatwave” is far cooler than normal. The dinosaurs would have scoffed at us: “What? You think this is warm?”
Citat:
With so much volatility in the graphs, anyone could play “pick a trend” and depending on which dot you start from, you can get any trend you want.
Exakt.