To get this generation, many states now require fossil fuel powered generators to buy "green tags" from, for instance, solar generators, for every unit of power sold by that fossil plant.
"Land plants have existed for about 400 million years and if you know where to look, you can find remains of fossil plant material from each of the ancient periods, " said Jahren.
"(Our study) suggests that we will be able to use the composition of fossil plant tissue to reconstruct the carbon composition of past atmospheres as far back as 400 million years ago, " she added.
The ash is a waste product of the Kingston Fossil Power Plant which is operated by the Tennessee Valley Authority.
In a conventional fossil-fuel plant that's prohibitively expensive, since the CO2 is mixed in with nitrogen.
There's even a "white tag" market: When I install a more efficient light bulb, I can sell that efficiency gain to the fossil fuel power plant, just as if it's a green tag.
In your standard fossil-fuel power plant, the inefficiency begins when the coal or gas ignites.
Researchers from Johns Hopkins and the University of California at Berkeley found evidence in data collected from 176 thriving plant species that fossil plants can help scientists determine sources of carbon in the atmosphere hundreds of millions of years ago.
Shuttering even one U.S. nuclear power plant could unleash massive carbon emissions if fossil-fuel plants were used to make up the lost power, according to a new study released this weekend by researchers at Carnegie Mellon University.
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These natural oils and biomaterials are tailored not only for fuel production, but also as replacements for fossil-derived petroleum and a variety of natural plant oils and compounds, making them useful in a wide range of products: from oleochemicals, to cosmetics, to foods.
Some of these developers are established engineering and construction firms in the power plant business, or they are owners of fossil fuel power plants.
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Alternatively, they like when an energy manufacturing plant is built in their district, or a fossil fuel mining or drilling operation occurs in their district.
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