The only thing green about that bud is its chlorophyll.
In California, indoor marijuana grows account for about 9 percent of household electricity use. An indoor grow module accommodating four plants sucks as much electricity as 29 refrigerators. For every pound of pot grown 4,600 pounds of CO2 goes into the atmosphere. The energy needed to produce a single joint is enough to produce 18 pints of beer and creates emissions comparable to burning a 100-watt lightbulb for 25 hours. The production and distribution of pot in America emits as much carbon as 3 million cars. And other fun facts.
posted by three blind mice
on Mar 18, 2014 -
services that power email and other technologies we use each day are themselves massive energy consumers. Gigaom reporters have written a pair of in-depth articles about efforts by Amazon
to build infrastructure and source their own energy.
posted by Blazecock Pileon
on Nov 18, 2013 -
From the Netherlands Environmental Assessment Agency...
)(Actual Report PDF
Actual global emissions of carbon dioxide (CO2) reached a new record of 34.5 billion tonnes in 2012. Yet, the increase in global CO2 emissions in that year slowed down to 1.1% , which was less than half the average annual increase of 2.9% over the last decade. This is remarkable, as the global economy grew by 3.5%. This development signals a shift towards less fossil-fuel-intensive activities, more use of renewable energy and increased energy saving. Increases in fossil-fuel consumption in 2012 were 2.2% for natural gas, 0.9% for oil products, and 0.6% for coal.
posted by Long Way To Go
on Oct 31, 2013 -
"Over the years, napping has gotten a bad rap, becoming a sign of laziness or weakness, especially during the workday. Yet, according to a growing body of scientific research, napping can actually be a very good and very smart thing to do. How so? Napping can help refresh the mind, make you more creative, boost your intelligence, and even help you live a longer, healthier life. Studies over the past decade have confirmed all of this and more, and napping is slowly gaining acceptance as a part of a healthy lifestyle, even in some corporate offices. Whether you're ready to jump on the nap-happy bandwagon or just learn more about the research being done on the practice, read on as we share the science behind the need to nap, interesting research into napping, and a scientist-approved method for taking the ideal nap
posted by paleyellowwithorange
on Sep 17, 2013 -
, also known as clathrates, are crystalline ice structures which trap molecules of natural gas. They are fairly ubiquitous
in near-shore seafloor sediments, where methane from decaying organic matter is trapped in an ice structure at low temperature and high pressure. Though methane hydrates are believed to contain substantially more natural gas than conventional deposits, extraction of the natural gas was thought to be impractical. Until now
. [more inside]
posted by irrelephant
on Mar 12, 2013 -
How can we get CO2 out of the atmosphere? Get it out of the sea first.
Making jet fuel from seawater
is a pretty cool -- albeit energy intensive -- trick. But applying the same science to scrub CO2 out of seawater, where it is more densely concentrated than in the atmosphere -- and, by doing so, to reduce atmospheric levels of CO2 back to acceptable levels -- that's a game saver.
"what would it take to draw atmospheric carbon down to 350 ppm with just this technology? . . . we would require the power of about 700 AP-1000 nuclear reactors. At the Chinese cost of $1.3b apiece and an 80 year lifetime this would cost a bit over $1 trillion dollars. That sounds like a lot of money. But its only about the cost of America’s 2003 Iraq War spread over the century, so I guess it’s a question of priorities."
posted by markkraft
on Jan 19, 2013 -
A five-part series on the ultimate limit on technology, and how that limit could help us find other civilizations: 1 2 3 4 5 [via]
posted by cthuljew
on Dec 12, 2012 -
Morton and Vicary on the Categorified Heisenberg Algebra
- "In quantum mechanics, position times momentum does not equal momentum times position! This sounds weird, but it's connected to a very simple fact. Suppose you have a box with some balls in it, and you have the magical ability to create and annihilate balls. Then there's one more way to create a ball and then annihilate one, than to annihilate one and then create one. Huh? Yes: if there are, say, 3 balls in the box to start with, there are 4 balls you can choose to annihilate after you've created one but only 3 before you create one..." [more inside]
posted by kliuless
on Jul 21, 2012 -
A month ago, the Japanese TV show "Morning Bird" discussed the current state
of the Fukushima Daiichi nuclear plant, and specifically Unit 4, which is in terrible condition
. During an interview with Dr. Hiroaki Koide, Research Associate at the Research Reactor Institute of Kyoto University, who explains the immense difficulty in moving the radioactive fuel rods - a process that will not even start
until 2013 - the presenter asks what would happen if even a moderate earthquake struck near the plant before the fuel rods can be moved. Koide replies
That will be the end.
posted by crayz
on Apr 14, 2012 -
END:CIV [full 75 minute movie] "If your homeland was invaded by aliens who cut down the forests, poisoned the water and air, and contaminated the food supply, would you resist?" [more inside]
posted by Burhanistan
on Mar 9, 2012 -
Something For Nothing.(1940)
Cartoonist Rube Goldberg discusses the perpetual motion device, celebrates America's inexhaustible supply of fossil fuels, and mocks hydroelectric power and other whacky inventions.
(A 1930s Jam Handy/GM production.)
posted by Stagger Lee
on Feb 29, 2012 -