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"Methane gas is bubbled up through a funnel of soapy water and a buoyant column of suds grows gracefully upward like a large bubbly snake swaying elegantly "

"Our climate is changing. The planet is warming faster than at any time in the last 10,000 years. Global average temperatures have risen by 0.8ºC since the late 19th century, and 0.2ºC per decade over the past 25 years. Man-made greenhouse gas emissions have caused, and continue to cause, most of the observed temperature rise since the mid 20th century. Millions of tonnes of greenhouse gases are produced every day by human activity. These constant emissions into the Earth's atmosphere continue to drive global warming. "