Tag: Science

Dec 05 2012

Doha climate talks: Island states stand up for ambition

“We have not seen concrete progress on the issues that are important to ensuring the survival of all our members. How many conferences do we have to endure where we go back to our countries and say, ‘next year we will increase ambition to reduce emissions, next year we will see finance, next year we …

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Sep 28 2012

Good Arctic sea ice pic and vid

I’ve already blogged about the record Arctic sea ice melt. The following picture and video further illustrate the point. This graphic from the Australian Conservation Foundation shows what the Arctic melt would look like if Australia was melting: Note that Arctic sea ice volume has declined even more dramatically, with four-fifths disappearing in the 34-year …

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Sep 21 2012

Arctic sea ice minimum: A planetary emergency

The news that Arctic sea ice is in meltdown is being treated as merely one news item among many, even though it threatens to set off a chain of tipping points affecting all of humanity and life on Earth. I’m reminded of how the iceberg warnings sent to the Titanic by other ships were interspersed …

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Aug 29 2012

Arctic sea ice in a death spiral

Source: International Arctic Research Center As Australian politicians fiddle with the details of an extremely insufficient climate change policy, I’ve been watching Arctic sea ice news with increasing dismay. Summer sea ice in the Arctic is fast melting away, accelerated by amplifying feedbacks in what has been called a “death spiral”. The disappearance of Arctic …

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Jul 25 2012

Is Greenland close to a climate tipping point?

Recent findings suggest climate change in Greenland may be approaching a tipping point, beyond which amplifying feedbacks could lead (probably over centuries) to complete melting of the ice sheet, raising sea level by about 7 meters. In June, a team of glaciologists led by Jason Box predicted that we would see melting across 100% of …

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Jul 05 2012

Climate change explained in 15 minutes

The other day I found this great TED video where blogger David Roberts explains the significance of increasing degrees of global warming:

Jun 10 2012

Stop saying yes: Bright-siding

This is the fourth in a series of posts about the Australian climate movement. David Spratt at the blog Climate Code Red has recently spoken out against what he calls “bright-siding”: a misguided tendency for climate activists (and governments) to campaign on the arguable side-benefits of climate policies (eg. green jobs), rather than explain the …

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Feb 20 2012

Get ready for the carbon bubble

Remember the sub-prime mortgage bubble? The next economic bubble could be caused by investing in the unsustainable fossil fuel industry. The idea might sound incredible, but it results from our failure to seriously address the science of climate change. The science tells us we can’t burn all fossil fuels Fossil fuels formed over millions of …

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Apr 21 2011

Christy Crock: Do the observations match the models?

I wrote this post for Skeptical Science. At the recent US House of Representatives Committee on Science Space and Technology climate hearing, the Republicans called Dr. John Christy as an expert witness testifying against the global warming consensus. Unfortunately, Christy spent his time repeating a long list of climate myths, including the common contrarian refrain …

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Mar 08 2011

Climate Emergency: Time to Slam on the Brakes

I wrote this post for Skeptical Science as a basic rebuttal of the argument “It’s not urgent”. Global warming is an increasingly urgent problem. The urgency isn’t obvious because a large amount of warming is being delayed. But some of the latest research says if we want to keep the Earth’s climate within the range …

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