Climate Science

17/01/14
Author: 
Michael Mann
arctic meltwater

STATE COLLEGE, Pa. — THE overwhelming consensus among climate scientists is that human-caused climate change is happening. Yet a fringe minority of our populace clings to an irrational rejection of well-established science. This virulent strain of anti-science infects the halls of Congress, the pages of leading newspapers and what we see on TV, leading to the appearance of a debate where none should exist.

Category: 
16/01/14
Author: 
Staff
methane levels

Above image shows IASI methane levels on January 14, 2014, when levels as high as 2329 ppb were recorded. This raises a number of questions. Did these high methane levels originate from releases from the Arctic Ocean, and if so, how could such high methane releases occur from the seafloor of the Arctic Ocean at this time of year, when temperatures in the northern hemisphere are falling? Let's first establish where the methane releases occurred that caused these high levels. After all, high methane concentrations are visible at a number of areas, most prominently at three areas, i.e.

Category: 
16/01/14
Author: 
Kevin Anderson

In May 2012 the UK Prime minister joined with other G8 leaders in reaffirming their respective national commitments to make their fair contribution to avoiding a 2°C rise in global temperatures (Camp David declaration). That is, the UK has committed to reduce its emissions of carbon dioxide, and hence its use of high carbon energy sources, in accordance with the science of climate change (the Copenhagen Accord). This weekend the Prime minister attributed the UK’s recent flooding and damaging weather, and hence at least some of the costs, to climate change.

Category: 
15/01/14
Author: 
Staff
The tailings pond at the Syncrude mine north of Fort McMurray, Alberta, Canada. Tar sands could become a 'stranded asset', campaigners say Photograph: Ashley Cooper pics/Alamy

Canada's carbon emissions will soar 38% by 2030 mainly due to expanding tar sands projects, according to the government's own projections.In a new report to the United Nations, the Harper administration says it expects emissions of 815million tonnes of CO2 in 2030, up from 590Mt in 1990.

15/01/14
Author: 
Jeff Toleffson

The biggest mystery in climate science today may have begun, unbeknownst to anybody at the time, with a subtle weakening of the tropical trade winds blowing across the Pacific Ocean in late 1997. These winds normally push sun-baked water towards Indonesia. When they slackened, the warm water sloshed back towards South America, resulting in a spectacular example of a phenomenon known as El Niño. Average global temperatures hit a record high in 1998 — and then the warming stalled.

Category: 
11/01/14
Author: 
Renfrey Clarke

“Today, after two decades of bluff and lies, the remaining 2°C budget demands revolutionary change to the political and economic hegemony.” That was in a blog posting last year by Kevin Anderson, Professor of Energy and Climate Change at Manchester University. One of Britain’s most eminent climate scientists, Anderson is also Deputy Director of the Tyndall Centre for Climate Change Research. Or, we might take this blunt message, from an interview in November: “We need bottom-up and top-down action.

Category: 
05/01/14
Author: 
Barry Saxifrage
ExxonMobil report

ExxonMobil's influential global energy report, "The Outlook for Energy: A View to 2040", says that new technologies like fracking and tar sands are unlocking a gusher of oil and natural gas. Our ability to extract new sources of fossilized carbon is growing even faster than we can burn them up.

Category: 
07/01/14
Author: 
Andrew Freedman
Scott Olsen/Getty Images

While the ongoing cold snap is breaking records from Minnesota to Florida, it will not go down in history as the most significant Arctic outbreak in U.S. history, not even by a longshot. Scientists said the deep freeze gripping the U.S. does not indicate a halt or reversal in global warming trends, either. In fact, it may be a counterintuitive example of global warming in action. Researchers told Climate Central that the weather pattern driving the extreme cold into the U.S.

Category: 
31/12/13
Author: 
Oliver Milmann
Accounting for cloud formation

The Earth’s climate is far more sensitive to carbon dioxide emissions than previously thought, heightening the likelihood of a 4C temperature rise by 2100, new Australian-led research of cloud systems has found. The study, published in Nature, provides new understanding on the role of cloud formation in climate sensitivity – one of the key uncertainties in predictions of climate change.

Category: 
13/12/11
Author: 
Steve Connor
Arctic methane plume

Dramatic and unprecedented plumes of methane - a greenhouse gas 20 times more potent than carbon dioxide - have been seen bubbling to the surface of the Arctic Ocean by scientists undertaking an extensive survey of the region. The scale and volume of the methane release has astonished the head of the Russian research team who has been surveying the seabed of the East Siberian Arctic Shelf off northern Russia for nearly 20 years.

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