(par 3. 3.2) Carbon dioxide accumulates as seas and forests struggle to absorb
http://www.independent.co.uk/environment/carbon-dioxide-accumulates-as-seas-and-forests-struggle-to-absorb-it-9722224.html Carbon dioxide is being accumulated in the atmosphere at the fastest rate since records began, as scientists warn that the oceans and forests may have absorbed so much CO2 that their crucial function as “carbon sinks” is now severely threatened. The jump in atmospheric CO2 is partly the result of rising carbon emissions as […]
(par 3. 3.2) Greenhouse Gases Hit Record High Amid Fears of CO2 Saturation Point
Greenhouse Gases Hit Record High Amid Fears of CO2 Saturation Point http://news.nationalgeographic.com/news/2014/09/140909-record-greenhouse-gases-carbon-sinks-global-warming-ocean/ Data suggest natural “carbon sinks” may be nearing exhaustion, say some scientists, although others disagree. The burning of coal worldwide, as shown here in Jharkhand, India, contributes to the amount of greenhouse gases in the atmosphere. Photograph by Robb Kendrick, National Geopgraphic Creative […]
(par 3. 3.2) What is The Carbon Cycle?
http://eschooltoday.com/ecosystems/the-carbon-cycle.html The carbon cycle is very important to all ecosystems, and ultimately life on earth. The carbon cycle is critical to the food chain. Living tissue contain carbon, because they contain proteins, fats and carbohydrates. The carbon in these (living or dead) tissues is recycled in various processes. Let’s see how this cycle works using […]