Main Activities Maintenance of Information Infrastructure: The collection and public dissemination of both national and international information related to global warming and climate change. A central part of this activity consists in the construction and maintenance of a searchable database currently only in Japanese of global warming and climate change resources, including for example Internet resources and materials held by the JCCCA. Promotion of lifestyle reform:
The degree Fahrenheit degree Celsius fumes left over contain at least 30, parts per million of carbon dioxide CO2 —the primary greenhouse gas responsible for global warming —along with other pollutants. Today, this flue gas wafts up and out of the power plant's enormous smokestacks, but by simply bubbling it through the nearby seawater, a new California-based company called Calera says it can use more than 90 percent of that CO2 to make something useful: It's a twist that could make a polluting substance into a way to reduce greenhouse gases.
Cement, which is mostly commonly composed of calcium silicates, requires heating limestone and other ingredients to 2, degrees F 1, degrees C by burning fossil fuels and is the third largest source of greenhouse gas pollution in the U. Making one ton of cement results in the emission of roughly one ton of CO2—and in some cases much more.
While Calera's process of making calcium carbonate cement wouldn't eliminate all CO2 emissions, it would reverse that equation. The idea is to capture the CO2 and other greenhouse gases produced when burning fossil fuels, such as coal or natural gas, and then permanently store it, such as in deep-sea basalt formations.
Calera's process takes the idea a step forward by storing the CO2 in a useful product. The Calera process essentially mimics marine cementwhich is produced by coral when making their shells and reefs, taking the calcium and magnesium in seawater and using it to form carbonates at normal temperatures and pressures.
They're just shooting it up into the atmosphere anyway. Once dried, the Calera cement can be used as a replacement for the Portland cement that is typically blended with rock and other material to make the concrete in everything from roads to buildings.
Or make a road twice as thick. Carbon Sciences in Santa Barbara, Calif. Halifax, Nova Scotia—based Carbon Sense Solutions plans to accelerate the natural process of cement absorbing CO2 by exposing a fresh batch to flue gas.
And a number of companies are working on reducing the energy needs of Portland cement making. The key will be ensuring that such specialty cements have the same properties and the same or lower cost than Portland cement, says Carbon Sciences president and CEO Derek McLeish.
But the companies may also find it challenging to get their cements approved by regulators and, more importantly, accepted by the building trade, says civil engineer Steven Kosmatka of the Portland Cement Association.
So things move kind of slowly. You sure can," Kosmatka says.
You probably can do that, too. Nor are there any limitations on the raw materials of the Calera cement: Seawater containing billions of tons of calcium and magnesium covers 70 percent of the planet and the 2, power plants in the U. The process results in seawater that is stripped of calcium and magnesium—ideal for desalinization technologies—but safe to be dumped back into the ocean.
And attaching the Calera process to the nation's more than coal-fired power plants or even steel mills and other industrial sources is even more attractive as burning coal results in flue gas with as much asparts per million of CO2.
But Calera is starting with the cleanest fossil fuel—natural gas. The company has set up a pilot plant at Moss Landing because California is soon to adopt regulations limiting the amount of CO2 power plants and other sources can emit, and natural gas is the primary fuel of power plants in that state.
According to Constantz, some flue gas is already running through the company's process. Although no formal agreement has been struck, "their proposed technology for capturing CO2 from flue gases and turning it into a beneficial, marketable product sounds very interesting to us," Dynegy spokesman David Byford says.
The carbon issue is something we are just turning our attention to now, and so far it's been quite elusive.About JCCCA. Purpose The law "Promotion of Measures to Cope with Global Warming" (full text; timeline) of October , actualized in April , allowed for the establishment of "one National Center for the Promotion of Activities to Cope With Global Warming whose purpose is to promote activities which contribute to mitigating global warming through such measures as education and.
To analyse how construction industry could contribute to global warming and what efforts have been made in order to reduce global warming. Objectives To study the factors in which construction industry had caused global warming.
The world today has encountered with global warming and climate change. Besides other contributors, extraction of natural resources as building materials itself consume energy, cause environmental.
Dr. Ivar Giaever, a Nobel Prize-Winner for physics in , declared his dissent on man-made global warming claims at a Nobel forum on July 1, “I would say that basically global warming is a non-problem,” Dr. Giaever announced during his speech titled “Global Warming Revisited.
A Lukewarm View of Global Warming This site was founded by John L. Daly (click his name for information about John). The imminence of peak oil – the point at which the maximum rate of oil production is reached – may be in doubt but the recent disaster in the Gulf of Mexico illustrates the increasing complexity of the task facing those seeking new sources of crude oil.