“From 1991, when the experiment began, the plots subjected to 5C warming lost about 17% of the carbon that had been stored in the top 60cm of the soil, where the greatest concentration of organic matter is to be found.
Scientific understanding of the complexities of soil microbial activity is still limited, but the long-term nature of the study provides valuable insights into what might be happening, and is likely to happen in future, to vast swaths of forest soils across the world.
While deforestation has been the focus of most research into forests’ effects on climate change, with a recent study suggesting tropical forests are turning into carbon sources rather than carbon stores as a result, the impact of warming soils has remained much of a mystery. Soils are one of the world’s biggest natural carbon sinks, along with trees and the oceans.
Daniel Metcalfe, of Sweden’s Lund University, said: “If these findings hold more widely across major terrestrial ecosystems, then a much greater portion of the global soil carbon store could be vulnerable to decomposition and release of carbon dioxide under global warming than previously thought.””
See Carbon emissions from warming soils could trigger disastrous feedback loopI understand soil. I understand positive feedback. The one leads to life as we know it. The other leads to bad things happening if not limited nicely. Soil is not just crushed rock. It’s a living thing filled to the gunnels with organic matter: bacteria, fungi, critters, roots, stuff… Warm it up or dry it out and the living things in soil will die and may oxidize, releasing CO2. If global warming is what warms it up, the resultant release of CO2 will just accelerate the warming. Hence, in my lifetime or my children’s lifetime we may be forced to live in caves to avoid the heat and eat sparse rations if human life continues at all.
Global warming is like lighting a fire with a match. One inputs a bit of heat at a high temperature and then the kindling ignites, causing a greater rise in heating and temperature, whereupon the rest of the stuff ignites. Don’t ignite Earth, please. Stop pumping up the concentration of CO2 in the atmosphere. It’s not OK even if it seems less expensive in the short run (according to Trumpists).
Wake up people! Drive smarter electrically. Heat your homes electrically and/or with geothermal heating and solar heating. Save the planet while you still can, if you still can.
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- 2015 - Year of the GNU/Linux Desktop
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My MissionMy observations and opinions about IT are based on 40 years of use in science and technology and lately, in education. I like IT that is fast, cost-effective and reliable. I do not care whether my solution is the same as yours. I like to think for myself.
My first use of GNU/Linux in 2001 was so remarkably better than what I had been using, I feel it is important work to share GNU/Linux with the world. I have been blessed by working in schools where students and school systems have benefited by good, modular software easily installed in most systems.
I have shown GNU/Linux to thousands of students and hundreds of teachers over the years and will continue in some way doing that until I die in spite of the opposition.