In 2001, Australia produced 528.1 million tonnes of carbon dioxide equivalent -- this was mainly carbon dioxide (69.9%) as well as methane (22.9%), nitrous oxide (6.3%) and other gases. Of Australia's total net emissions in 2001, the production of energy accounted for 68.0%, 19.5% came from agriculture, emissions from industrial processes contributed 4.6%, and waste emissions contributed 3.1%. See similar questions...

Greenhouse gas emissions are gases that trap heat in the Earth's atmosphere. Without greenhouse gases the average global temperature would go from 59 degrees Fahrenheit to 0 degrees Fahrenheit. The most notable greenhouse gases are carbon dioxide (CO2), methane (CH4), nitrous oxide (N2O), halocarbons that contain fluorine such as hydrofluorocarbons (HFCs) and perfluorocarbons (PFCs), and sulfur hexafluoride (SF6) (EPA 2003c). Each greenhouse gas differs in its ability to hold heat. See similar questions...

Scientists know for certain that human activities are changing the composition of Earth's atmosphere. Increasing levels of greenhouse gases, like carbon dioxide (CO2 ), in the atmosphere since pre-industrial times have been well documented. There is no doubt this atmospheric buildup of carbon dioxide and other greenhouse gases is largely the result of human activities. It's well accepted by scientists that greenhouse gases trap heat in the Earth's atmosphere and tend to warm the planet. See similar questions...

For many years, West Virginia was the largest producer of natural gas east of the Mississippi River. In recent years, it has still produced significant amounts of natural gas in the Appalachian Basin. Reported production in 2001 was 191 Bcf (billion cubic feet) of natural gas and 1.607 million bbl (barrels) of oil. We have seen published illustrations of drilling and production activity in the Burning Springs area of Wirt County from the late 1850s. See similar questions...

Landfill gas recovery projects provide a highly effective means of reducing overall greenhouse gas emissions from landfills, whether the landfill gas is combusted by flare, electricity generation equipment, or another end use system. By using the otherwise wasted methane contained in the collected landfill gas to generate electricity or directly as a fuel, fossil fuels such as oil and coal are displaced. See similar questions...

Natural gas is primarily methane, which is a major greenhouse gas. Methane is emitted directly to the atmosphere from sources such as leaks in natural gas wells and pipelines and is produced in landfills, sewage treatment facilities and livestock operations. Other major greenhouse gases, carbon dioxide and nitrous oxides are produced when natural gas is burned for heating and electric power production. See similar questions...

Every day millions of cows and sheep in New Zealand are burping the greenhouse gas methane (CH4) into the air as they digest their food. CH4 is also released when these animals chew cud. It is produced by the bacteria that live inside their stomachs - these bacteria are essential for the animals to digest the grass they eat. Methane from farm animals is an important issue because of the increasing number of such livestock being farmed worldwide. See similar questions...

The greenhouse gas estimates presented here are full fuel-cycle estimates, combining the three major greenhouse gases emitted by motor vehicles: Full fuel-cycle estimates include all steps in the use of a fuel, from production and refining to distribution and final use. This gives a more complete picture of the climate change impacts of using a particular fuel. Some greenhouse gases have greater impacts on climate than others. See similar questions...

Inventory of U.S. Greenhouse Gas Emissions and Sinks: 1990-2004. U.S. EPA, Office of Atmospheric Programs. EPA/430/R-06-002. April 15, 2006. This report presents estimates by the United States government of U.S. human-related greenhouse gas emissions and sinks for the years 1990 through 2004. The information provided in this inventory is presented in accordance with the Revised 1996 Intergovernmental Panel on Climate Change (IPCC) Guidelines for National Greenhouse Gas Inventories. See similar questions...

One of the strongest pieces of evidence for human-induced climate change is the consistent rise in carbon dioxide (CO2) in modern times, as measured at the Mauna Loa Observatory in Hawaii, where CO2 has been observed since 1958. As of 2005, the concentration of CO2 in Earth’s atmosphere was about 378 parts per million (ppm). See similar questions...

There are six main greenhouse gases, the most common of which are carbon dioxide (C02), methane (CH4) and nitrous oxide (N20). These are all produced from human activity - C02 from transport and energy; CH4 mainly from animals burping out the gas as they digest their food; N20 mainly from agriculture such as the use of fertiliser and when animals urinate. See similar questions...

In 2005, there were 18.2 trillion cubic feet (Tcf) of dry natural gas produced in the U.S. The top producing states are: See similar questions...

Major industrial sectors, including electricity produced by combustion, oil and gas, base metal smelters, iron and steel, some mining sectors, cement, forest products, and chemicals production contribute about half of Canada's greenhouse gas emissions that cause climate change. Industry produces about half of Canada's greenhouse gas emissions that cause climate change and our plan sets mandatory targets for them to reduce these emissions. See similar questions...

C02 is naturally released into the air from rotting or burning trees and plants. When it is released, some C02 stays in the air for a long time and some is stored in plants, plankton and seashells. Some C02 also dissolves in seawater. Human activity is adding to the amount of C02 in the air. People burn fossil fuels like coal, oil and gas to power factories and make electricity to heat our homes. See similar questions...

Nitrous oxide (N2O), is released into the air when animals urinate and when fertilisers are applied to the soil. See similar questions...

When the ethanol component of E10 Unleaded is burned, the carbon dioxide it releases into the atmosphere is actually used by plants to grow, including the crops that can be used to create ethanol. This 'cycling' of carbon reduces the build-up of carbon dioxide in the atmosphere. The amount of greenhouse benefit varies depending on how the ethanol is produced and the crops used as feedstock. See similar questions...

Carbon dioxide (the key factor in climate change) and other greenhouse gases come mainly from the exhaust pipes of cars, trucks and other vehicles, and from the stacks of power plants and industries that burn coal, oil, and gas. In Canada the biggest source of carbon dioxide is transportation -- approximately one-quarter of the total. Industries are not far behind contributing 19 per cent. See similar questions...

The concentration of carbon dioxide is approximately 30 per cent greater than it was in the 18th century, before the industrial revolution. It has increased from around 280 parts per million (ppm) to approximately 360 ppm today. Although carbon dioxide comprises only 0.036 per cent of the air, its warming effect is significant. Methane levels have risen from a pre-industrial concentration of about 700 parts per billion (ppb) to 1700 ppb. See similar questions...

The purpose of Mensheds Australia is to create a fresh approach to developing men's sheds and their integration into the community, addressing such things as, creating new and sustainable men's sheds, improving retention, performance and expansion of existing men's sheds, developing strategies and attraction of new opportunities to men's sheds, and their community in a practical way. See similar questions...