2010: In an explosive clip from the BBC’s landmark series, scientists drill into a frozen lake to ignite methane gas that is trapped in bubbles beneath the surface. Do greenhouse gases pose a significant threat to our planet? Dr Iain Stewart assesses the dangers.
Runaway climate change Wikipedia: Runaway climate change describes a scenario in which the climate system passes a threshold or tipping point, after which internal positive feedback effects cause the climate to continue changing, even absent further external forcings. The runaway climate change continues until the feedback effects run out, possibly at a new climate state. The phrase “runaway climate change” is used to describe…
2009, Dr Iain Stewart traces the history of climate change Notice: This video has been blocked by the BBC
2009, Dr Iain Stewart traces the history of climate change Notice: This video has been blocked by the BBC
2009, Dr Iain Stewart traces the history of climate change Notice: This video has been blocked by the BBC
See Part One here YouTube One of the most confusing effects of climate change is the increasing incidence of weather extremes, that may include hot, AND cold, snow and rain, wet and dry, drought and flood. Scientists have been examining this problem intensely over recent years, as Europe, America, and Asia have all been subject…
Bill McGuire, author of ‘Waking the Giant: How a changing climate triggers earthquakes, tsunamis, and volcanoes‘, discusses the topics raised in his book. Twenty thousand years ago our planet was an icehouse. Temperatures were down six degrees; ice sheets kilometres thick buried much of Europe and North America and sea levels were 130m lower. The…
A brief preview of our education work communicating (1) recent climate change impacts on humanity, and (2) a comparison of the cost of addressing climate change as defined in the Stern report compared to the costs we currently incur every year to continue using fossil fuels. Related 350.org do the Math http://math.350.org | Video by Scientia
THE world is on the cusp of a “tipping point” into dangerous climate change, according to new data gathered by scientists measuring methane leaking from the Arctic permafrost and a report presented to the United Nations on Tuesday. “The permafrost carbon feedback is irreversible on human time scales,” says the report, Policy Implications of Warming…