Sea-level rise predictions since the IPCC
It is well known that the IPCC projections for sea-level rise are low. There are many reasons for this, but perhaps the main reason is the fact that the IPCC basically ignore sea-level rise contributions from the melting Greenland and Antarctic ice sheets:
Denier double standards
One of the main reasons why I refuse to call deniers, skeptics, is because they constantly and consistently demonstrate double standards. The recent bluster by deniers about a couple minor errors (some of which weren’t even errors at all) in the IPCC, yet silence in regards to the many areas where the IPCC was too conservative is a perfect example of this.
The case for global warming is stronger than ever
Despite what many deniers, aided by an irresponsible media who have no ability to distinguish a legitimate expert from a crank, want you to believe, the case for global warming has never been stronger.
A recent study by the Met Office makes it clear that the evidence supporting global warming is getting better all the time:
By looking at a wide range of observations from all over the world, the Met Office study concludes that the fingerprint of human influence on climate is stronger than ever. "We can say with a very high significance level that the effects we see in the climate cannot be attributed to any other forcings [factors that push the climate in one direction or another]," says study co-author Gabriele Hegerl of the University of Edinburgh…
The fact that climate change evidence that was "very likely" a few years ago [the the IPCC AR4] has now been declared likelier still by the comprehensive Met Office report suggests that the evidence for human-caused climate change is getting better all the time.
Or in other words, the small uncertainty that exists regarding climate change is getting smaller all the time, despite non-scientific claims to the contrary.
Amazonian contradictions
Looks like the Amazon(non)gate wont die. And in keeping it alive the deniers are again showing their self-contradictions.
So what happened? It started in 2007, when a study (Saleska et al. 2007, Science) showed that the Amazon actually greened during the drought of 2005. This was an odd responses; no one expected a rainforest to green during a drought, though because the study conclusions were based on satellite imagery, rather than direct observations, there was less certainty in them.
Now, a new study (Samanta et al. 2010, GRL), also using satellite imagery, indicates that the 2005 drought did not cause a greening of the Amazon. So how is this new study being spun by deniers? The same way the 2007 study was spun.
Or as Tim Lambert said “It’s always bad news for the IPCC”. Both studies can’t be bad news for the IPCC, but such contradictions are par for the course in denialist land.
1995gate and sea-levelgate crock
I wrote about 1995gate here, and sea-levelgate here.
Open Letter from US Scientists on the IPCC
Over 250 scientist have signed an open letter (and signatures are till being collected) re–affirming the conclusions of the IPCC fourth assessment report. They re-affirm that our greenhouse gas emissions are responsible for the warming trend. They reaffirm that the CRU emails do not disprove global warming, and that the few minor error’s in the IPCC do not undermine it or its conclusions any any meaningful way.
It is time for scientists to take a stand and not sit idle while science is trashed by pundits and politicians. This is a good first step.
We’re not going to take it anymore!
We’re not going to take it. NO! We ain’ gonna take it! We’re not going to take it anymore!
With apologies to Twisted Sister. But this is the impression one gets from the latest leak of emails. Scientists are mad. They are mad that the reporting of climate change has gone from bad to abysmal, that deniers get away with saying obvious untruths, yet every single error made by scientists no matter how minute is made out as the death-knell of global warming, when in reality the science has never been clearer, that US senators are calling for criminal charges against leading climatologists, and they are mad that their fellow scientists are receiving death threats for simply doing their job. And they are not going to take it anymore:
Climate change: The big picture
This video presents a good summary of the multiple lines of evidence that underpin the conclusion of the IPCC and other reports that our greenhouse gas emissions are responsible for the recent warming trend.
Anyone who claims there is no empirical evidence for man-made global warming, has their head firmly in the sand.
Lies, damn lies, and fake quotes
The smoking gun of evidence that climate scientists are exaggerating their claims has been shown to be a complete fabrication:
Errors in the IPCC and perspective
It was inevitable. The IPCC AR4 is over 3000 pages long, there are bound to be some errors contained within. But some perspective is needed when they are found; jumping to the conclusion that any error in the IPCC is proof that climate science is bunk, or that global warming is a sham is absurd.
