About half of all potential future global warming emissions from United States fossil fuels lie in oil, gas and coal buried beneath our public lands, controlled by the federal government and owned by the American people - and not yet leased to private industry for fuel extraction.
Of course methane is a fossil fuel, but as long as it is burned efficiently and fugitive emissions of methane gas are minimised, it is a less harmful fossil fuel than coal and oil and is an important way-station on the global journey towards low-carbon energy.
The real requirement, if we are to avoid runaway global warming, is probably 80% by 2030, and almost no burning whatever of fossil fuels (coal, gas and oil) by 2050.
Natural gas obviously brings with it a number of quality-of-life environmental benefits because it is a relatively clean-burning fuel. It has a CO2 footprint, but it has no particulates. It has none of the other emissions elements that are of concern to public health that other forms of power-generation fuels do have: coal, fuel oil, others.
Today, natural gas now outstrips coal as the leading provider of electricity in America. If this is as big as people believe it is, natural gas will soon be powering trucks and marine ships. Maybe even standard commercial cars that people use at home through compressed natural gas, other gas to liquids. The potential is there for more energy independence by America and a reliance on cleaner fuel - natural gas emits half as much as coal, in terms of carbon emissions. That's a real bounty.
Apparently, the fossil-fuel industry's strategy is to convince the American people that we should just burn all the way through the last of our oil and coal reserves.
My heart breaks living in southern Utah on the edge of America's Redrock Wilderness, witnessing what the Bush Administration's policies regarding oil and gas exploitation are doing to our public lands that belong to all Americans. Their policy is not about the public or the public's best interest. It is about the oil and gas corporations' best interests. The Secretary of the Interior is urging the Bureau of Land Management to support the gas and oil industry's most extreme drilling scenario in some of the American West's most pristine and fragile areas without proper legal and public input.
We need a firm cap on carbon emissions from fossil fuels. No coal, oil, or gas could enter the economy until the buyer had a permit. All permits would be auctioned by the federal government, and the number of permits auctioned would be decreased by three percent per year. Permits could be traded, but they could not be created out of whole cloth by companies that plant forests or dump iron filings at sea.
We promote new fossil fuel infrastructure, from airport expansion and coal mines in the U.K. to oil pipelines in the U.S. Investments are meant to build and secure our shared future - but all these fossil fuel investments are directly fuelling the climate crisis that threatens to undermine that future.
When ships reduce their speed they use less fuel, resulting in fewer greenhouse gas emissions and other pollutants; the global shipping industry accounts for nearly 3 percent of global greenhouse gas emissions.
There is an urgent need to stop subsidizing the fossil fuel industry, dramatically reduce wasted energy, and significantly shift our power supplies from oil, coal, and natural gas to wind, solar, geothermal, and other renewable energy sources.
A significant number of petroleum geologists believe that we will reach the global maximum of petroleum extraction within this decade or that we have already reached it. Peak Oil happened in 1970 in America, when over half of our oil that we gained from the soil was exhausted ... This is very disturbing, regardless of global warming.
Fossil fuel corporations are supposed to pay the government fair market royalties in exchange for the right to drill on public lands or in federal waters.
Compared to coal, which generates almost half the electricity in the United States, natural gas is indeed a cleaner, less polluting fuel. But compared to, say, solar, it's filthy. And of course there is nothing renewable about natural gas.
The issue of climate change is one that we ignore at our own peril. There may still be disputes about exactly how much we're contributing to the warming of the earth's atmosphere and how much is naturally occurring, but what we can be scientifically certain of is that our continued use of fossil fuels is pushing us to a point of no return. And unless we free ourselves from a dependence on these fossil fuels and chart a new course on energy in this country, we are condemning future generations to global catastrophe.
Under pressure from a growing movement of people who want their money out of fossil fuels, universities, pension investors and foundations are looking to exclude coal, oil and gas stocks from their portfolios.
I honestly don't know, but if America continues to refuse to reduce its greenhouse gas emissions, I see a bleak future not only for American society, but for the world as a whole. This is a global problem that is not going away, and the United States is an obstacle to solving it.