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Energy and Sustainable Living
Eco-news archive: November-December 2007
A greener way to recover methane
(Dec 13, 2007)
Oil reservoirs could have an environmental make-over with the
help of bacteria. A report in Nature has shown how crude oil in
deposits around the world are naturally broken down by microbes
to methane. Scientists say that increasing microbe activity would
produce a more energy-efficient method of methane recovery.
Read
more. Source: BBC |
Arctic summers ice-free 'by 2013'
(Dec 12, 2007)
Scientists in the US have presented one of the most dramatic forecasts
yet for the disappearance of Arctic sea ice. Their latest modelling
studies indicate northern polar waters could be ice-free in summers
within just 5-6 years. Professor Wieslaw Maslowski told an American
Geophysical Union meeting that previous projections had underestimated
the processes now driving ice loss.
Read
more. Source: BBC |
'Tropics expand' as world warms
(Dec 4, 2007)
Climate change is causing the tropics to widen, with possible
impacts on the global food supply, research suggests. Scientists
examined five different measures of the width of the tropical
belt, and found it expanded by between 2 and 4.8 degrees latitude
since 1979. Other researchers meanwhile said climatic change could
increase the number of thunderstorms in the US.
Read
more. Source: BBC |
Energy needs 'to grow inexorably'
(Nov 9, 2007)
The global demand for energy is set to grow inexorably through
to 2030 if governments do not change their policies, warns a top
energy official. Nobuo Tanaka, executive director of the International
Energy Agency (IEA), said such a rise would threaten energy security
and accelerate climate change. He said energy needs in 2030 could
be more than 50% above current levels, with fossil fuels still
dominant.
Read
more. Source: BBC |
Parrotfish to aid to reef repair
(Nov 1, 2007)
A vividly coloured fish could be the key to saving the Caribbean's
coral reefs from plummeting into terminal decline, scientists
claim. Their research forecasts that reefs risk being damaged
beyond repair by the influx of seaweed. But urgent action such
as protecting parrotfish, which graze upon the floral invaders,
may prevent the ecosystems from reaching this tipping point.
Read
more. Source: BBC |
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