Global Warming Started 180 Years Ago Near Beginning of Industrial Revolution, Says Study (smh.com.au)

New research led by scientists at the Australian National University's Research School of Earth suggests that humans first started to significantly change the climate in the 1830s, near the beginning of the Industrial Revolution. The findings have been published in the journal Nature, and "were based on natural records of climate variation in the world's oceans and continents, including those found in corals, ice cores, tree rings and the changing chemistry of stalagmites in caves." Sydney Morning Herald reports: "Nerilie Abram, another of the lead authors and an associate professor at the Australian National University's Research School of Earth Sciences, said greenhouse gas levels rose from about 280 parts per million in the 1830s to about 295 ppm by the end of that century. They now exceed 400 ppm. Understanding how humans were already altering the composition of the atmosphere through the 19th century means the warming is closer to the 1.5 to 2 degrees target agreed at last year's Paris climate summit than most people realize." "It was one of those moments where science really surprised us," says Abram. "But the results were clear. The climate warming we are witnessing today started about 180 years ago."

Comments

Re: The anti-science sure is odd.

[sg_oneill]

Ah yes those pesky scientists and their vast left wing conspiracy. Thankfully we have a random slash dot person to expose those cunning monger era of facts.

Re: Stop it with the SJW crap!!!

[Anonymous Coward]

That's cool. There was also a total consensus about The Aether, the Earth-Centric universe, Global Cooling, and all kinds of other obviate true science fact.

I believe in global warming, but I'm not so arrogantly fucking full of myself as to assume 100 percent truth, or to insult other people who aren't convinced.

It isn't their fault they aren't convinced. It's yours. Convince them, or admit that you don't have a convincing argument.

Re:The anti-science sure is odd.

[serviscope_minor]

Actually, did you not know the Minoan Warm Period, Roman Warm Period and Medieval Warm period were warmer than today?

No I didn't know that, mostly because they're not. Here's a graph:

https://upload.wikimedia.org/w...

See how the global temperature is not in fact warmer during the medieval warm period?

This is why Vikings farmed in Greenland and.... ... and yada yada yada it was warmer in the North Atlantic. We know. The North Atlantic is not the world. This is why it's called *global* warming. And the globe is warmer now than it was then.

You talk about 'nutters' yet seem to be defending a position for which you don't even understand even the basic counter evidence

The irony burns so bad I think my screen is about to melt.

http://green-agenda.com/

I'll bet that website has no agenda!