How many square metres of rainforest are required to remove one tonne of CO2 from the atmosphere in a year?
929873
lol \n\nu would have to figure out, at least, how much CO2 a "common" rainforest tree can remove as they would remove the most CO2 not saying that other foliage would be insignificant. then figure out spacing between those trees. i think from that point you can figure out just how many square meters of rainforest it would take to remove a ton of CO2. \n\nthen, figure out a percent at which the surrounding foliage would assist in the removal of CO2. shrink the total area by that percent to get a more realistic size.
757978
Like the person said above.  0.038% of the atmosphere is made up of CO2.  That's 3.8 parts per million.  So that's why it won't take very much for people to double the amount of CO2 that is naturally occuring.
638140
probably carbon dioxide mostly
431250
Three ways to interpret this question.\n\n1. As a percentage of all the carbon dioxide in the atmosphere, which is ~380ppm or 600 x 10^15 g C. In this case we add <1% per year. The atmospheric carbon dioxide is then projected to double, at present rates of increase, in just over 100 years.\n\n2. As a percentage of the net input flux of carbon of which we are responsible for about 95%.\n\n3. As a percentage of the net total flux of carbon, of which we are closer to 15-20%, which I think somebody already mentioned.
782814
1) Bring all carbon dioxide producing systems under proper control. Regulate the carbon dioxide generation by all such systems so as to curb fanciful use of such systems, and allow only the necessary.\n\nThe United Nations can impose limits of total CO2 release by all systems in a country that can be allowed, can creat a technologically competent controlling and governing apparatus\nfor this.\n\n2) War footing plantation drives. Cover the entire globe with trees and forests. Not with any kind of green shrub,that is handy,  but botanically designed forests with eco-balance. It is not difficult., if all the Govennemts give this action a serious priority. And also, not so expensive as it may look, if the various populaces over the globe accept it with heart.\n\nForests are commercially exploitable systems. Let big investers cultivate forests on all the waste lands of all the Governments and be allowed to ripe the harvests in future.\n\nAll religions have given importance to trees. Design psychological projects of making all religious leaders to highlight and give emphasis to all the rituals related to trees.\n\nRedefine uses of lands and make suitable legislations. I will put it roughly in  this way. " Any piece of land which is not already used for dwelling, agriculture, industry, water reserves or throughfare, and is not privately owned, is open for any individual to plant trees and ripe the harvests thereof."\n\n3) Concentrate more on developing technology for mass scrubbing of CO2.  Both mega systems and micro systems.
588947
It depends on what kind of lubricant.\n\nMost lubricants are slightly less dense than water, so it would take slightly more than a thousand liters of most lubricants to make up a metric tonne (1000 kg) of the lubricant.
628076
From the Clausius Clapeyron equation you get:\n- at 0 C: 3.79 g of water vapor in 1 kg of air (or 0.00379 m3 in your cubic meter of air)\n\n- at 20 C: 14.7 g\n- at 40 C: 47.9 g\n\nAs you can see, it is an exponential relationship.
831655
The total area on the surface of the earth is 510,065,500 sq. Km Out of which Land area is 148,939,100 km²  equivalant to 29.2 % and Water area is 361,126,400 km² equivalant to 70.8 %.-
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Antartica: \ntotal area: 14 million sq km,(280,000 sq km ice-free, 13.72 million sq km ice-covered)\n\n\nhttp://www.cia.gov/cia/publications/factbook/geos/ay.html
181824
We do not "EMIT" carbon dioxide.. we "EXHALE" it... according to my bilogy book.. our lungs get rid of 18 litres of carbon dioxide daily.
1100315
It is carbon dioxide molecules produced devided by oxygen molecules consumed. In humans it is roughly 0.8
66484
Problem State: \n68 million acres of forest damaged or destroyed by acid rain \n\nAcid rain is caused primarily by the emission of sulfur dioxide from coal-fired power plants. There are a number of remedies, including: switching fuel sources to natural gas, oil, or renewable energy sources; switching to low-sulfur coal; removing the sulfur from the coal before burning; using fluidized-bed combustion processes to burn the coal; and removing the sulfur from the smoke stack after combustion through the installation of pollution control equipment such as "scrubbers." \n\nCosts/Benefits \n\nA combination of tax incentives, government regulations and direct assistance that results in pollution-control equipment being placed on all coal combustion sites, increases in efficiency of industrial processes, transportation and appliances would cost approximately $8 billion per year for ten years. This is about 1% of the world's total military expenditures.
100786
Surface Area: Land area, about 148,300,000 sq km, or about 30% of total surface area; water area, about 361,800,000 sq km, or about 70% of total surface area.
146681
Trick question? 1 square meter. Right?
723940
From square metres to acres  (divide by 4047)\nsquare metres to hectares (divide by10 000)
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irrigate - 1.8 million hectares\n\nsorry that's all
764727
Hi Danieller, I have put together all the information on this topic for you, so if you decide to go with it, all the research is done.\n\nThe Amazon Rainforest\n\nHelp with Rainforest School Reports\n\nhttp://www.rain-tree.com/schoolreports.htm\n\nhttp://www.extremescience.com/AmazonRiver.htm\n\nThe Amazon Rainforest\n\nhttp://www.bbc.co.uk/dna/h2g2/A925913\n\nThe Amazon region has a great forest that presents the largest biodiversity of the world. It is a plane equatorial area, covering 5.5 million square kilometers, that corresponds to more than half of the European continent.\n\nhttp://library.thinkquest.org/20248/\n\nThis Unit Lesson is inspired by the following facts :\n\nhttp://earthrenewal.org/rainless.htm\n\nThe Disappearing Rainforests\n\nThe Amazon Rainforest has been described as the "Lungs of our Planet" because it provides the essential environmental world service of continuously recycling carbon dioxide into oxygen. More than 20 percent of the world oxygen is produced in the Amazon Rainforest.\n\nhttp://www.rain-tree.com/facts.htm\n\nhttp://www.eduweb.com/amazon.html\n\nhttp://www.rainforestweb.org/Rainforest_Regions/South_America/Brazil/\n\nhttp://www.brazadv.com/brazil_tours/amazon_rainforest.asp\n\nWorld: Americas\n \nAmazon rainforest finds unlikely guardian\n\nhttp://news.bbc.co.uk/1/hi/world/americas/82957.stm\n\nThe expansion of Brazil's soya market is fuelling an emerging cycle of deforestation. Over three-quarters of a million hectares of soya was planted within the Amazon deforestation belt by the end of 2001.\n\nhttp://weblog.greenpeace.org/amazon/\n\nAn area the size of Eire lost since 2003 \n\nIllegal logging and cattle ranching are still encroaching on the Amazon rainforest, but increasingly the large-scale cultivation of soya is to blame for the destruction. And it's not just the forest that suffers. Soya farmers often force indigenous peoples off their land before bringing in the bulldozers to clear and then burn the forest. The use of slaves to clear the land has also been reported.\n\nhttp://www.greenpeace.org.uk/forests/forests.cfm?ucidparam=20060307133001&CFID=4989237&CFTOKEN=73924303\n\nAmazon 'stealth' logging revealed\n\nhttp://news.bbc.co.uk/1/hi/world/americas/4362760.stm\n\nDemand for Brazilian beef threatens rainforest\n\nhttp://www.scidev.net/news/index.cfm?fuseaction=readnews&itemid=1314&language=1\n\nAn acre of Brazilian rainforest is destroyed every nine seconds. \nIn Brazil there have been 90 distinct indigenous cultures that have become extinct this century. \n\nhttp://archive.greenpeace.org/comms/cbio/brazil.html\n\nThreats and Solutions\n\nhttp://www.greenpeace.org/usa/campaigns/forests/the-amazon-rainforest/threats-and-solutions\n\nAmazon Photos\n\nhttp://www.leslietaylor.net/gallery/gallery.htm\n\nGood luck.\n\nKevin, Liverpool, England.