A graphic look at the amount of water and fuel it takes to raise animals for food versus the amount it takes to raise plants for food, plus additional environmental information, may just have you rethinking your meat consumption.
Posts tagged resources.
Who owns Africa’s Natural Resources?
Wildlife at risk as Amazon tribes come under threat from oil exploration
“The biggest conservation issue in the Amazon is the indigenous people in protected areas, but no one wants to talk about it.”
“The Tagaeri and the Taromenane – who have fought off illegal loggers and Catholic missionaries with spears and blowpipes to maintain their isolated, nomadic existence – are now at risk from the construction of roads and drilling wells as petroleum firms carve up the Yasuni national park.”
photo: Yasuni National Park, Ecuador
Some rights reserved © 2011 Francesco Pizitutti
The End of Oil van Edward Burtynsky.
If you were to understand our planet only from the images that NASA and other space agencies snap from above, you might think we were a bucolic, peaceful species at home with our environment. But the planet has plenty of eco-problems — especially with water. Across the globe, permafrost and glaciers are melting, while sea levels are rising.
7 countries battling water issues
1. Tissue slurry — Ontario, Canada This man-made lake in Terrace Bay, Ontario, Canada, is more than 500 metres long. It’s an aeration pond, part of the waste-treatment system at a factory that produces pulp for Kimberly-Clark tissues. “The treated water is returned to its source — often a river,” says Fair. Each yellow cone is an “agitator” that aerates and churns the liquid, assisting its breakdown. According to Worldwatch Institute figures, if recycled paper was used instead, 64 per cent less energy would be needed.and churns the liquid, assisting its breakdown. According to Worldwatch Institute figures, if recycled paper was used instead, 64 per cent less energy would be needed.
2. Fertiliser — Louisiana, US This emerald-tinted lake near Geismar, Louisiana, includes gypsum, uranium and radium. These chemicals result from manufacturing phosphorous fertiliser and are dumped into this impoundment to solidify. The world’s supplies of phosphates are dwindling and most are located in the US, China and Morocco. Unlike oil, however, there is no known renewable alternative for making fertiliser. “You think the resource crisis is in oil?” says Fair. “Think again.”
3. Spilled oil — Gulf of Mexico, US Fair captured this shot over the BP Deepwater Horizon spill at the Macondo well in June 2010, when 750m litres of oil leaked into the Gulf. “The stuff that was coming out of that well was all different colours,” says Fair. “We think of crude oil as being black — it’s all kinds of different colours and consistencies.” The bright red is the crude on the surface, reflecting light. The less viscous oil below the surface is purple-brown.
4. Liquid sulphur — Alberta, Canada At Fort McMurray in Alberta, Canada, a blood-red vein of liquid sulphur is pumped on to a bed of solidified yellow sulphur. The element is one of the major by-products of tar-sand upgrading and there is now an abundance of stocks globally. With prices low, producer Syncrude isn’t selling — it’s storing it in giant pyramids. Liquid sulphur, at around 200°C (its melting point is 115°C), is pumped into fenced-off compounds and left to harden.
5. Aluminium sludge — Louisiana, US This slurry pit is where the solid and liquid by-products of aluminium manufacture are separated. The process involves refining bauxite ore, which produces alumina. The waste includes bauxite impurities, heavy metals and sodium hydroxide (one of the chemicals used during processing). Fair estimates that the red-brown sludge has a pH of about 13, “meaning if you touch it, it burns the skin off”.
6. Fertiliser slurry — Louisiana, US This wintry-looking scene is a mix of lead, ammonia, mercury and ethanol — by-products of phosphate fertiliser production. “It’s a giant lake of waste,” says Fair, who shot the image 80km west of New Orleans in 2005. Owned by Mosaic Fertilizers, the plant, called Uncle Sam, has violated the US Clean Water Act nine times. The slurry pit is less than 3km from the banks of the Mississippi.
In this illustration, the blue ball represents the volume of all the water on earth, relative to the size of the earth. The tiny speck to the right of the blue ball represents Earth’s fresh water.
If Earth were the size of a basketball, all of its water would fit into a ping pong ball. If Earth were an apple, the entire water layer would be thinner than the fruit’s skin.
How much water is that? It’s roughly 326 million cubic miles (1.332 billion cubic kilometers), according to a recent study from the U.S. Geological Survey.
About 72% of Earth is covered in water, but 97% of that is salty ocean water and not suitable for drinking. In fact, less than 1% of that 3% (the world’s freshwater) is readily accessible at the surface.
(via the-star-stuff :: photo by David Gallo/WHOI)
As it’s becoming more apparent that we can’t get our hands on enough free educational books, courses, and more, I’m receiving an increasingly steady stream of submissions and suggestions on additional resources not yet addressed. FreeScience is one of the best I’ve seen so far. Who doesn’t love free books? Especially free science books!? Enjoy this list of 2000+ science-related books, ready to download and read at the push of a button, for your personal mind expansion!
And if you have any other great self-education resources, let me know!
there’s a link to grey’s anatomy!