Yikes! This snippet is scary. I mean really scary. If you don’t think it sounds scary, then you don’t understand the world we live in. The amount of phytoplankton - tiny marine plants - in the top layers of the oceans
has declined markedly over the last century, research suggests.
Writing in the journal Nature, scientists say the decline appears to be linked to rising water temperatures. The decline - about 1% per year – 40% over the last 60 years - could be ecologically significant as plankton sit at the base of the marine food chain. An additional cause could be
ocean acidification or, in actuality, reduction of ocean alkalinity (to shut up the deceivers and nit pickers). Obviously CO2 dissolves into the top layers of the ocean, which is where the phytoplankton hang out. Land plants are very sensitive to the ph (hydrogen ion concentration, aka acidity) of soil. As any good gardener knows, changing the ph of your soil can have dramatic effects on how well or badly various plants grow. It doesn't take much to upset the plankton balance and good old Homo
Sapiens has recklessly stepped up to the plate again and done it. And is carrying on doing it.
Worse, phytoplankton sequester atmospheric carbon dioxide, particularly species such as the
coccolithophores so this could be a positive feedback loop in action. N.B. some coccolithophores actually grow better in water with increased CO2 so, as always, things are more complicated than they, at first, appear. Read
this blog about the plunge in phytoplankton.
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ANCHORAGE,
Alaska— A new federal report out very recently finds there’s a 40-percent chance that the
Pacific walrus, a species imperilled by loss of sea ice due to global warming, will be on a pathway to extinction by the end of the century. Scientists with the Center for Biological Diversity say even that estimate is far too optimistic because the U.S. Geological Survey relied on modeling that underestimates the effects of climate change.
story follows here:
pacific-walrus-09-10-2010
Also a hair raising picture (from last years ice melt) of the mass “shore invasion” of walruses (walri?) which re-emphasises the current accelerating loss of multi-year ice in the Arctic. The walruses are suffering from the reduction in sea ice which they would normally be on or around.
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An ice island
four times the size of Manhattan has broken off Greenland
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Lloyds of London, the insurance market makers
have warned of "catastrophic consequences" for businesses that fail to prepare for a world of increasing oil scarcity and a lower carbon economy. Their report repeats warnings from Professor Paul Stevens, a former economist from Dundee University, at an earlier Chatham House conference that lack of oil by 2013 could force the price of crude above $200 (£130) a barrel. Peak oil featured on Newsweek with Paxman a few weeks ago so reality is seeping into the public arena.
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A new study by PricewaterhouseCoopers (PwC) argues that Europe and North Africa can achieve complete independence from fossil fuels by 2050, and that all the technologies necessary for such a transformation are already in place.
renewable-energy-europe-2050
The 100 percent goal could be reached even without nuclear energy or carbon-capture and storage technology, two
controversial elements of the renewable energy debate, according to the report.
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Portugal will get 45% of their electricity from renewable sources this year
NY times - renewable Portugal
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Germany could get
all of its electricity from renewables by 2050 the country's Federal Environment Agency said very recently
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China has probably surpassed the US in installed renewable energy or, if not, they will have by the end of the year.
greening China surpasses America
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News from the Desertec plan to build large solar concentrating (mirrors) power plant in the Sahara desert. In June, European Energy Commissioner Guenther Oettinger announced that Europe will start importing solar energy from the Sahara within the next five years.
solar energy from Sahara will be imported to Europe within 5 years
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In 2009,
Earth Overshoot Day was reached on September 25.
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This
New Scientist article is about a microbe that converts CO2 into methane using electricity. Well, what’s the use of that you might ask - apart from the coolness of the discovery?
Using some renewable energy for supplying the grid is not as reliable as, say, coal fired stations because sometimes the wind doesn’t blow or the sun doesn’t shine. Any grid system with a significant proportion of the load supplied by renewables would work much better with the ability to store energy for short periods and this is where this microbe may come in. At times of high availability of renewable energy (strong winds and sunny days) the surplus energy, if this research pans out, can convert CO2 into methane, at an efficiency of around 80%, which can be injected straight into extant natural gas pipelines or stored locally. Methane, of course, is a very useful source to supply domestic level fuel cells which can act as distributed microgeneration.
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Bike Powered Cell Phone Chargers in Kenya
Half of Kenya’s inhabitants own a cellphone but many lack access to the necessary electrical infrastructure to charge their phones, forcing them to travel great distances and pay steep prices to juice up their phones at charging stations (around $2 a charge). Here’s news of a bike
dynamo powered phone charger
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Here’s a
Newsy collection of items about global examples of zero waste aspirations to generate no non-recyclable or compostable waste.
Newsy.com is a good place to see the same story from multiple media viewpoints and various countries as they present snippets gathered from many sources.
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Environmental action documentary/movie
The Cove. Flipper meets The Bourne Identity. An elite team of activists, filmmakers and freedivers embark on a covert mission to penetrate a remote and hidden cove in Taiji, Japan, shining a light on a dark and deadly secret.
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Superweeds and super bugs. Monsanto invented the GM crops that had resistance to glyphosate (Roundup). Nature fought back. The RoundupReady gene is present in approximately 90% of the soy and 70% of the corn and cotton grown in the U.S. Now it’s in the weeds too. The “superweed” problem is bad and getting worse: according the
International Survey of Herbicide Resistant Weeds, there are now 348 different herbicide-resistant weed biotypes, 19 of which are specifically impervious to glyphosate. Arkansas Association of Conservation Districts President Andrew Wargo, III told the
New York Times that superweeds are the “single largest threat to production agriculture we’ve ever seen”
Here’s an
ABC news video about superweeds
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