Добавлено (19.07.2014, 11:29:19)
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The overwhelmingly dominant human contribution to climate change appears to be the human impact on the global carbon dioxide concentration. For 400,000 years before industrialization, the global average concentration never exceeded 300 ppm. Since industrialization, it has risen from 285 parts http://pmkpmk.comeze.com per million (ppm) CO2 to approximately 380 ppm, with a steep climb in the past few decades. Climate scientists predict that our present rate of growth in carbon emissions will result in a global average of 700 ppm CO2. Most climate scientists agree that we should stabilize the concentration between 450 and 550 ppm by the year 2100 in order to limit global average temperature to a 2 degrees Celsius increase above current climate.

Добавлено (19.07.2014, 11:29:54)
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The overwhelmingly dominant human contribution to climate change appears to be the human impact on the global carbon dioxide concentration. For 400,000 years before industrialization, the global average concentration never exceeded 300 ppm. Since industrialization, it has risen from 285 parts http://pmkpmk.comeze.com per million (ppm) CO2 to approximately 380 ppm, with a steep climb in the past few decades. Climate scientists predict that our present rate of growth in carbon emissions will result in a global average of 700 ppm CO2. Most climate scientists agree that we should stabilize the concentration between 450 and 550 ppm by the year 2100 in order to limit global average temperature to a 2 degrees Celsius increase above current climate.

Добавлено (24.07.2014, 11:33:03)
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SIP homes are basically panelized homes by a different name. The S.I.P.s used in SIP homes are basically two pieces of load-bearing material sandwiched around an insulating core. These panels reduce the need for using separate structural and insulating elements in the construction of exterior walls; instead of erecting a http://spetstech.net78.net lumber frame and adding insulation between the studs, SIP homes are constructed with each of these elements contained in uniform, extremely sturdy panels. The S.I.Ps themselves are more expensive as a material than lumber and rolled or batt insulation, but the quickness with which SIP homes can be built can often make up the difference in initial cost by reducing labor hours. Environmental Benefits of Panelized Home Construction. With so many people becoming increasingly concerned with the material waste and energy expenditure common to traditional home construction, panelized homes are a welcome breath of fresh air.