Human sources come principally from the burning of fossil fuels such as coal, oil and gas.
Later in the program, trading snowmobiles for stegoceras bones--a look into the international fossil market.
One investor may emphasize avoiding polluters or fossil fuel producers, sidestepping Exxon ( XOM), for instance.
He just wants to provide an alternative to the world's diminishing reserve of fossil fuels.
The famed fossil was discovered in 1861 in Germany and quickly became an evolutionary icon.
With fossil fuels once again expensive, Cohen's facility with the technology is in demand.
Other species are embedded in the fossil record of the epochs they belong to.
Meanwhile, the underlying fossil fuels are probably as cheap as they are ever going to get.
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Fossil CH4 is quick and easy to set up and get up and running.
Solar will be as cheap as fossil fuels before long, both PV and solar thermal.
Cheap fossil fuels are also undermining efforts to develop and adopt renewable energy.
From the perspective of displacing fossil-fuel use, solar thermal water heater systems are even more advantageous.
Over time, fossil and nuclear energy may look a lot less objectionable to many true environmentalists.
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It runs 73 fossil and hydro plants along with six nuclear reactors at three sites.
Fossil fuels are bad, at least if you subscribe to the global warming theory.
The fossil is a member of the Alvarezsauridae family, a group of bird-like dinosaurs.
"Haplocheirus is a transitional fossil, " Jonah Choiniere from George Washington University told the BBC.
Eric plans to revive his fossil business, by doing prep work and making casts.
"The first place to start is to stop putting public money towards fossil fuels, " he adds.
The team had examined 14 coprolites, as fossil faeces are termed by polite scientists.
The authors say the current fossil fuel business model assumes that there are no emissions limits.
Another option--which can also increase your fossil's value--is to lend it to a museum for study.
None of their delicate sensibilities and sophisticated culture will survive in the fossil record.
They hunger for electricity, which in the U.S. comes predominantly from burning fossil fuels.
Both rely heavily on coal, which is the most carbon-intensive of all the fossil fuels.
The irony is that the rise in renewable energy will require more fossil fuels.
At the moment Turkey's energy sector is dependent on dirty, expensive fossil fuels, which are imported.
Georgia Power, a subsidiary of Southern Company, is retiring 2, 000 megawatts of fossil-fired generation.
For instance, it's best that we not build extra power plants that run on fossil fuel.
The fossil industry revolves around applying technology to tapping resources that are much harder to extract.
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