To date, no drug has been approved in its leaf form because plants contain a complex composition of compounds with uncertain pharmacologies, metabolisms, side-effect profiles, toxicologies, drug interactions, and no control of relative concentrations.
Furthermore, because power plants such as coal and nuclear require many hours to either ramp up or down in response to demand shifts, natural gas plants are preferred because they can be turned up or down in a matter of minutes This has implications for both power costs, and for system reliability.
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Official figures indicate that 25% of the power generating capacity of new solar plants in 2011 went unused because the plants could not maintain a connection with the electric grid.
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Increasing CO2 levels will be a net benefit because cultivated plants grow better and are more resistant to drought at higher CO2 levels, and because warming and other supposedly harmful effects of CO2 have been greatly exaggerated.
Refineries are running at their lowest levels in 2 years because more plants are undergoing more extensive maintenance this year.
Utilities refuse to make bigger investments because power plants with CCS would be much more expensive to build and run than the ordinary sort.
Called C4 plants because they utilize a molecule with four carbons, plants that use this evolutionary trick include sugar cane, corn and other tropical plants.
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And the automakers, in early '06, announced restructuring plants because they had started to see the shift away from SUVs and trucks.
You argue that CCS is unproven because no power plants use it today, yet you do not recognise the economic reasons behind this.
New companies often send hazardous waste out of their plants because they have not yet invested in on-site treatment equipment, which allows them to recycle some waste.
Beijing catches so much of the pollution from coal-burning power plants because it sits at the center of a ring of mountains, which help trap the smog.
On Tuesday, Vauxhall said it was stopping production for a week from 24 September at its Ellesmere Port and Luton plants because of falling European car sales.
We can no longer seek to train children to perform in jobs in automotive plants because those jobs have long since been shipped out to Mexico and to China.
Ford Motor (nyse: F - news - people) said today it will idle three auto-production plants because of its Firestone tire recall, taking 6, 000 workers off the production lines.
You wouldn't immediately think of the ear's cochlea as an energy source, but MIT knows that every mammal effectively has a pair of very small power plants because of the ionized environment.
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With more focus on clean energy, companies with coal operations, such as Southern Company, will have to retire those plants because they will eventually be too expensive to maintain, notes Morgan Stanley analyst Greg Gordon.
The U.S. Environmental Protection Agency had to all but eliminate the mandate for 2010 because no commercial plants had been built, and it has proposed rules for 2011 that would likely cut the requirement 90%.
The protesters -- mostly comprised of fishermen -- had been seeking to prevent trucks from hauling Maine lobster into Canadian plants because of an excess of the crustacean, which has contributed to a recent crash in wholesale prices.
Again, any other promoters there might be would affect its expression in plants, not in humans, because they are engineered into plants.
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She adds that for a healthy environment you need all kinds of bees because they pollinate different plants.
The mix includes a lot of wind and geothermal, but solar could start to overtake others because many solar power plants are under construction now.
Britain, Australia and others have also vowed to help fund demonstration plants partly because they reckon the private sector is put off by the huge price-tag on a single CCS power plant, and also in the belief that the cost of CCS will fall with experience.
Other large herbivores, especially giraffes, will eat the plants, probably because they are not as bothered by the ants.
They chose the oasis because there were few other plants in the area from which mosquitoes could obtain their favourite tipple.
Farmers selected plants for seed because they looked and tasted good, without having any idea of what was really different about them.
"We're not putting plants in Asia because we want to take advantage of the cheap labor costs, " explains Peter, though he does note that almost every scientist in his Textile Effects lab is a woman with an advanced degree.
Further, a number of ethanol plants are not operating because of Big Oil's refusal to blend more ethanol.
Russia's grid and power plants are going cheap because they are clapped out.
The big power company, Niagara Mohawk, closed down all these little generating plants in the 1960s because they were supposedly inefficient.
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