planted city

Infographic: ‘Does Solar Really Work In My State?’

(Source: One Block Off the Grid via Fast Company)

Infographic: Commuting in Canada, by the numbers

(Credit: Globe & Mail)

Infographic: ‘The Dangers of Oil & Ice - The Scramble for Hydrocarbons Above the Arctic Circle’

The infographic comes from the article, ‘Unlocked by melting ice-caps, the great polar oil rush has begun’, in the UK’s Telegraph newspaper.

Infographic: ‘The Evolution of Solar Technology’

(Source: SunRun via Treehugger)

Infographic: How to Tell if Your City is Going Places

(From Project for Public Spaces via SmartPlanet)

Infographic: ‘Samso: The Energy Self-Sufficient Island’

It took ten years and $80 million, but the Danish island of Samsoe now produces enough energy to satisfy all its needs and still export 40 percent of its energy to the mainland. Going 100 percent renewable wasn’t easy, but the results have paid off handsomely. Farmers on the island who are powering their facilities with wind turbines are seeing a 6 to 7 year payback on those investments. And of course it’s remarkable that wind, unlike other energy technologies, is entirely compatible with agriculture.

(Source: SmartPlanet)

Infographic: ‘The British Cycling Economy’

“Cycling in the UK has undergone a renaissance over the past five years, with an increasing number of people taking to the streets of the UK by bike. Structural, economic, social and health factors have caused a ‘shift in the sand’ in the UK, spurring an expansion in the cycling market with indications that this will be a longer-term trend. This growth in cycling participation has had the knock-on effect of bringing economic and social benefits to the UK. In 2010 the result was a gross cycling contribution to the UK economy of £2.9bn.”

~ Dr Alexander Grous, productivity and innovation specialist at the London School of Economics and lead author of the new report, ‘The British Cycling Economy: Gross Cycling Product’.

(Source: London Cyclist)

Earth has 8.7 million species… but we’ve hardly met any of them

From BBC News:

The natural world contains about 8.7 million species, according to a new estimate described by scientists as the most accurate ever.

But the vast majority have not been identified - and cataloguing them all could take more than 1,000 years.

The number comes from studying relationships between the branches and leaves of the “family tree of life”.

The team warns in the journal PLoS Biology that many species will become extinct before they can be studied.

Although the number of species on the planet might seem an obvious figure to know, a way to calculate it with confidence has been elusive.

In a commentary also carried in PLoS Biology, former Royal Society president Lord (Robert) May observes: “It is a remarkable testament to humanity’s narcissism that we know the number of books in the US Library of Congress on 1 February 2011 was 22,194,656, but cannot tell you - to within an order of magnitude - how many distinct species of plants and animals we share our world with.”

…

About 1.2 million species have been formally described, the vast majority from the land rather than the oceans.

Check out the rest of the article here.

(Graphic credit: The Independent)

Infographic: ‘The Carbon Bathtub’

From National Geographic:

It’s simple, really: As long as we pour CO2 into the atmosphere faster than nature drains it out, the planet warms. And that extra carbon takes a long time to drain out of the tub.

A fundamental human flaw, says John Sterman, impedes action on global warming. Sterman is not talking about greed, selfishness, or some other vice. He’s talking about a cognitive limitation, “an important and pervasive problem in human reasoning” that he has documented by testing graduate students at the MIT Sloan School of Management. Sterman teaches system dynamics, and he says his students, though very bright and schooled in calculus, lack an intuitive grasp of a simple, crucial system: a bathtub.

In particular, a tub with the tap running and the drain open. The water level can stand for many quantities in the modern world. The level of carbon dioxide in Earth’s atmosphere is one. A person’s waistline or credit card debt—both of which have also become spreading problems of late—are two more. In all three cases, the level in the tub falls only when the drain runs faster than the tap—when you burn more calories than you eat, for instance, or pay off old charges faster than you incur new ones.

Plants, oceans, and rocks all drain carbon from the atmosphere, but as climatologist David Archer explains in his book The Long Thaw, those drains are slow. It’s going to take them hundreds of years to remove most of the CO2; that humans are pouring into the tub and hundreds of thousands of years to remove it all. Stopping the rise of CO2; will thus require huge cuts in emissions from cars, power plants, and factories, until inflow no longer exceeds outflow.

Check out the rest of the article here.