archive

Archive for November, 2010

Building A New Culture Of Teaching And Learning

Tuesday, November 30th, 2010

How do large hydro plant emissions compare with fossil fuel power plants?

Thursday, November 25th, 2010

Large hydropower reservoirs in the tropics can have a higher global warming impact per kilowatthour generated than fossil fuels, including coal. Philip Fearnside, of Brazilian government research institute INPA, estimates that in 1990 the warming impact of hydropower dams in the Amazon was equal to that of between 3 and 54 natural gas plants generating the same amount of energy. (Source)

Shipping

Thursday, November 25th, 2010

One giant container ship pollutes the air as much as 50 million cars. Yes, that’s 50 million. Which means that just 15 ships that size emit as much as today’s entire global “car park” of roughly 750 million vehicles. Among the bad stuff: Sulfur, soot, and other particulate matter that embeds itself in human lungs to cause a variety of cardiopulmonary illnesses.

But ships today are where cars were in 1965: utterly uncontrolled, free to emit whatever they like. Just one of many statistics: A car driven 9,000 miles a year emits 3.5 ounces of sulfur oxides–while the engine in a large cargo ship produces 5,500 tons.

The world’s biggest container ships have 109,000 horsepower engines which weigh 2,300 tons.
Each ship expects to operate 24hrs a day for about 280 days a year
There are 90,000 ocean-going cargo ships
Shipping is responsible for 18-30% of all the world’s nitrogen oxide (NOx) pollution and 9% of the global sulphur oxide (SOx) pollution.
One large ship can generate about 5,000 tonnes of sulphur oxide (SOx) pollution in a year
70% of all ship emissions are within 400km of land.
85% of all ship pollution is in the northern hemisphere.
Shipping is responsible for 3.5% to 4% of all climate change emissions

More here or here (PDF).

Small Multiples Charts

Monday, November 22nd, 2010

Nice “bar/line” chart style of multiples.

Small Multiples

Thursday, November 11th, 2010

Nice use of small multiples for these statistics. Some small suggestions for improvement here.

100 Years

Tuesday, November 2nd, 2010

Some governmental statistics.

Political Climate

Tuesday, November 2nd, 2010

What the population cares about is changing each election, and differences between conservatives and democrats are clearly visible.

Ranking Drugs

Tuesday, November 2nd, 2010

Which drugs are more harmful? And to others or the user? A discussion coming up from time to time, here now an interesting analysis.

Who is Funding … ? (SVG Application)

Tuesday, November 2nd, 2010

Interesting application, Flash-like look and feel, but based on SVG.

Man invents machine to convert plastic into oil

Tuesday, November 2nd, 2010