Download e-book for kindle: Countering 21st Century Social-Environmental Threats to by Frederic R. Siegel
By Frederic R. Siegel
This publication brings jointly in one quantity a grand evaluation of strategies - political, monetary, and medical - to social and environmental difficulties which are on the topic of the expansion of human populations in parts which can least do something about them now. via revolutionary edition to social and environmental adjustments projected for the long run, together with inhabitants development, international warming/climate switch, water deficits, and extending festival for different ordinary assets, the area are able to in achieving a good measure of sustainability for your time into the future.
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Additional resources for Countering 21st Century Social-Environmental Threats to Growing Global Populations
6 billion more people) by 2050 than in 2013. , Asia with 578 million and sub-Saharan Africa with 239 million). To achieve this goal means that cereals production will have to increase by one billion tonnes and livestock products by 200 million tonnes, annually . , feedstock, biofuels). 6 % annually during 1970–2008 and is expected to continue increasing its contribution to the global food ﬁsh supply. , inclusion of more beef and dairy products) may temper the easing of food security risks so that even with a doubling of agricultural production by 2050, malnourished persons will still number 370 million citizens.
In recent years, the area of rain-fed cultivation has dropped slightly, whereas the area of irrigated cultivation has increased more than 100 %. Indeed, more than 40 % of the increase in food production in the past half century is from irrigated land that has doubled in area. There are large zones of potentially useable agricultural land on earth, but only small areas of these can be used to expand cropping. This is because much of the earth’s land area is forested and has to be preserved, whereas other areas that are arable are protected because of environmental concerns (and laws), and still other arable areas are occupied by urban centers or set aside for urban development.
The relocation of industrial ventures to low-income countries is often close to urban centers. If wastewater from factories in or close to these centers is not collected, treated, and recycled, but is simply discharged into the immediate or nearby environments, it will likely harm people and damage ecosystems. Major industrial uses of water are for the production of food, chemicals, paper and paper products, primary metals, and gasoline, and oils. The water is used for product fabrication and may be incorporated into the products.
Countering 21st Century Social-Environmental Threats to Growing Global Populations by Frederic R. Siegel