By Brian Dawson
For a person attempting to separate the very fact from the fiction, The whole advisor to weather switch is an essential source. Taking you thru the A to Z of the major medical, geographical and socio-political matters all for the learn of our environment and the consequences of mankind’s influence upon it, subject matters lined include:
Environmental technology – the Carbon Cycle and the "Greenhouse Gases"
The affects of weather switch on existence, land and sea
Mitigation options from carbon seize to carbon taxes
The Kyoto Protocol and UNFCC
Renewable gasoline assets, from wind to sunlight power
Including courses to the most recent medical and governmental considering on weather switch, this e-book will inform you all you must learn about probably the most important factor dealing with mankind today.
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Such Low-Input High Diversity (LIHD) plantations can provide more usable energy per hectare at potentially lower cost. Natural grasslands typically have higher species diversity per hectare, which can yield higher cellulosic density per hectare. Yields of up to 50% more energy/ha can be achieved on degraded lands compared with corn bioethanol produced on fertile agricultural lands. 7 tCO2 per year (see carbon sinks and biosequestration). 10 The Iogen plant near Ottawa, Canada, has been producing second-generation bioethanol from straw and wood waste since 2005, but only at a rate of around 100,000 liters (about one tanker truck) per day.
BIODIVERSITY IMPACTS Biodiversity is a term used to describe the variability that exists between organisms, species, and ecosystems. 1 The earth’s biodiversity changes constantly as new species emerge and others disappear. Biodiversity is also concentrated in specific areas, particularly tropical rainforests. 3 This rate has not been constant, with some periods being characterized by rapid increases in biodiversity and others featuring mass extinctions. Changes in prevailing climatic conditions due to fluctuations in solar activity and long-term variations in the earth’s orbit (see Milankovich cycles), periods of intense volcanic activity, and cataclysmic meteorite strikes have been important determinants of biodiversity change in the past.
Most crop-based biofuels are subject to variations in global food prices, particularly corn, wheat, and sugar, and food price increases may divert biofuel feedstocks to other markets, possibly resulting in fluctuating supplies and prices. Biofuels provide less energy per liter of fuel (in the case of bioethanol) which, in combination with other negative public perceptions, may slow uptake. They provide, with current production methods, only modest greenhouse gas mitigation benefits relative to fossil fuels and, in some cases (depending on how and where they are produced) may result in a net increase in greenhouse gas emissions.