Biofuels offer some 60 per cent carbon dioxide saving on their fossil fuel equivalents.

A carbon tax has also been proposed as a method to reduce consumption of fossil fuels.

We need to use energy far more wisely while shifting from fossil fuels to low carbon energy sources.

Today s politicians focus narrowly on how high a carbon tax should be to stop people from using fossil fuels.

Carbon dioxide emissions have been growing fast, fossil fuel resources are being depleted rapidly, and global warming has accelerated.

Three objectives should be targeted low cost alternatives to fossil fuels, greater energy efficiency, and reduction of carbon dioxide emissions.

Agriculture is already responding positively to climate change mitigation through substitution of fossil fuels, continued energy efficiency and carbon sequestration.

In the longer term, it is hoped that carbon capture and sequestration will lead to zero emissions fossil fuel energy systems.

Global use of fossil fuels is contributing to a sharp rise in atmospheric carbon dioxide, which is causing the Earth to warm.

And, the World Bank s energy financing remains overwhelmingly dedicated to fossil fuels, despite limited efforts to establish funding for low carbon energy.

There is a fossil carbon continuum ranging from easy, conventional oil, to deep and ultra deep offshore oil, to extra heavy crude oil.

In any event, natural gas, though somewhat less carbon intensive than coal, is a fossil fuel burning it will cause unacceptable climate damage.

Indeed, the remaining carbon emissions budget until 2050, adherence to which is required to limit the global temperature increase to 2 C, is five times smaller than the carbon equivalent of proven fossil fuel reserves.

Regardless, fossil fuels will remain an important part of the global energy mix for the foreseeable future, and it is thus critical that fossil energy technologies continue to evolve towards cleaner, more efficient and less carbon intensive systems.

For example, information on fossil fuel inputs to each sector can be used to investigate flows of embodied carbon within and between different economies.

Investing heavily in research and development of low carbon energy, solar power, or other new technologies would become cheaper than fossil fuels much more quickly.

The most important challenge is to reduce, and eventually nearly eliminate, carbon dioxide emissions from burning fossil fuels such as oil, natural gas, and coal.

It is generally believed that the appropriate preventive measure is to stop burning fossil fuels and reduce the abundance of carbon dioxide in the atmosphere.

Taxing fossil fuels to reduce carbon emissions is a sensible part of the solution to climate change, but it is not the only or best way to prevent warming. There are other ways to cut carbon from the atmosphere.

Over time but this could take years consumers could invest in alternative energy sources and reduce demand for fossil fuels via carbon taxes and new technologies.

We need to use energy far more wisely while shifting from fossil fuels to low carbon energy sources. Such decisive improvements are certainly possible and economically realistic.

In order for the whole planet to make a sustainable shift away from fossil fuels, we need to make low carbon energy both cheaper and more efficient.

Moreover, the oil sheiks and other producers of fossil fuels who ultimately control the amount of carbon released to the atmosphere were not part of the deal.

First, increased reliance on fossil fuels runs contrary to the 1997 Kyoto Protocol s targets for reducing carbon emissions, as well as to the EU s own climate change objectives.

Obviously, the fossil fuel sector would shrink by 2020 as the energy system decarbonizes, with coal being partly displaced by lower carbon fuels, mainly gas and renewables (carbon capture and storage and nuclear power cannot make much of a difference by 2020).

Carbon emissions can be reduced through increasing the use of wood (which is a renewable resource), either for durable wood products or for biofuel, in place of fossil fuels.

By shifting to alternative energy sources, economizing on energy use, and capturing and safely storing the carbon dioxide produced by fossil fuels, global society can limit its emissions of carbon dioxide to prudent levels at an estimated cost of under 1 of global income.

Americans are bombarded by industry funded media downplaying climate change, while countries that are much poorer in fossil fuels are already making the necessary transition to a low carbon future.

The idea is to capture the carbon dioxide that is emitted in power plants and other big factories when fossil fuels are burned, thereby preventing it from entering the atmosphere.

If we continue on our current path, technological development will be nowhere near significant enough to make non carbon based energy sources competitive with fossil fuels on price and effectiveness.

There is no real alternative. High carbon growth is doomed, crippled by high prices for fossil fuels and killed off by the hostile physical environment that climate change will create.

Proponents of carbon cuts argue that green energy technologies only seem more expensive, because the price of fossil fuels does not reflect the cost of their impact on the climate.

But before it was fossil poetry language was fossil metaphor.

The Marrakech Accords acknowledged four major roles of forests in climate change as a source of carbon dioxide when destroyed or degraded as a sensitive indicator of a changing climate as a source of biofuels to replace fossil fuels and as a carbon sink, when growing.

Managing the transition from an economy based on fossil fuels to one based on low carbon alternatives will not be easy. But that is why it is essential to begin today.

Process, transportation and distribution of agricultural goods, as well as use of farm machinery that operate based on the use of fossil fuels, contribute to the production of atmospheric carbon dioxide.

Fossil fuels

Carbon Capture and Sequestration that's what CCS stands for is likely to become the killer app that will enable us to continue to use fossil fuels in a way that is safe.

We cannot break that dependence overnight. Yet we recognize that continuing to pour trillions of dollars into carbon based infrastructure and fossil fuel subsidies is like investing in sub prime real estate.

Instead of offering unsustainable and environmentally damaging subsidies for fossil fuels, public finance should encourage the development of new industries and businesses that are emerging in the course of the low carbon transition.

Despite all of the optimistic talk about wind, solar, geothermal, and other sustainable, non carbon emitting energy sources, no alternative is remotely ready to shoulder the energy burden currently borne by fossil fuels.

Oppel's zones are named after a particular distinctive fossil species, called an index fossil.

He should propose a sound strategy over the next 20 years for reducing America s dependence on fossil fuels, converting to electric vehicles, and expanding non carbon energy sources such as solar and wind power.

Many Parties presented estimated reserves of fossil fuels and or non fossil fuel energy sources.

Owing to fossil fuel emissions, there is now one third more carbon dioxide in the atmosphere than at any time in at least a million years, as the latest ice drilling in Antarctica has revealed.