Related topics: proceedings of the national academy of sciences , animals , plant species , american journal of botany
Plant
hidePlants are living organisms belonging to the kingdom Plantae. They include familiar organisms such as trees, herbs, bushes, grasses, vines, ferns, mosses, and green algae. About 350,000 species of plants, defined as seed plants, bryophytes, ferns and fern allies, are estimated to exist currently. As of 2004, some 287,655 species had been identified, of which 258,650 are flowering and 18,000 bryophytes. Green plants, sometimes called metaphytes or viridiplantae, obtain most of their energy from sunlight via a process called photosynthesis.
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News tagged with plants
EPA finds greenhouse gases pose a danger to health
Apr 17, 2009 |
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(AP) -- The Environmental Protection Agency concluded Friday that greenhouse gases linked to climate change "endanger public health and welfare," setting the stage for regulating them under federal clean air laws.
Wind + water = untapped energy: An abundance of power exists above Earth's oceans, study finds
Space & Earth / Earth Sciences
Jun 30, 2009 |
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(PhysOrg.com) -- Wind energy over the planet's oceans is a vastly underutilized renewable resource, according to UC Irvine researchers.
Desert Dust Alters Ecology of Colorado Alpine Meadows
Space & Earth / Earth Sciences
Jun 29, 2009 |
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(PhysOrg.com) -- Accelerated snowmelt--precipitated by desert dust blowing into the mountains--changes how alpine plants respond to seasonal climate cues that regulate their life cycles, according to results ...
How a Solar-Hydrogen Economy Could Supply the World's Energy Needs
Aug 24, 2009 |
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(PhysOrg.com) -- As the world's oil supply continues to dry out every day, the question of what will replace oil and other fossil fuels is becoming more and more urgent. According to the World Coal Institute, ...
Britain launches renewables drive to cut emissions
Jul 15, 2009 |
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Britain announced plans Wednesday to slash emissions with a huge increase in the use of renewable energy to generate one third of the country's electricity needs by 2020.
EarthTalk: Are hybrid cars really better for the environment?
Mar 30, 2009 |
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Dear EarthTalk: If you have an electric or plug-in hybrid car, you're paying for electricity rather than gasoline all or most of the time. How does that cost compare to a gas-powered car's cost-per-mile? And since the electricity ...
Solar power generation around the clock
Nov 05, 2009 |
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(PhysOrg.com) -- A Californian company, SolarReserve, is developing a solar power system that can store seven hours' worth of solar energy by focusing mirrors onto millions of gallons of molten salt, allowing ...
Evolution may take giant leaps
Dec 11, 2009 |
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(PhysOrg.com) -- A new study of thousands of species of plants and animals suggests new species may arise from rare events instead of through an accumulation of small changes made in response to changes in ...
Home power plants project unveiled in Germany
Sep 09, 2009 |
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An ambitious project was unveiled in Germany on Wednesday to install mini gas-fired power plants in people's basements and produce as much electricity as two nuclear reactors within a year.
Research shows some plants can remove indoor pollutants
Dec 02, 2009 |
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(PhysOrg.com) -- Some plants have the ability to drastically reduce levels of indoor pollutants, according to new research at the University of Georgia. Researchers showed that certain species can effectively ...
US energy use drops in 2008
Jul 20, 2009 |
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Americans used more solar, nuclear, biomass and wind energy in 2008 than they did in 2007, according to the most recent energy flow charts released by the Lawrence Livermore National Laboratory. The nation used less coal ...
Forests of Artificial Trees Could Slow Global Warming
Aug 28, 2009 |
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(PhysOrg.com) -- A new study on how technology could help to regulate climate change has studied hundreds of ideas, and selected three considered practical and able to be implemented quickly. The report's ...
Turning the tide to energy
Mar 06, 2009 |
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NASA researchers who developed a new way to power robotic underwater vehicles believe a spin-off technology could help convert ocean energy into electrical energy on a much larger scale. The researchers hope ...
Trees evolved camouflage defense against long extinct predator: First evidence of camouflage defense in plants
Jul 22, 2009 |
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(PhysOrg.com) -- Many animal species such as snakes, insects and fish have evolved camouflage defences to deter attack from their predators. However research published in New Phytologist has discovered that t ...
Solving the mystery of how plants survive near Chernobyl
May 13, 2009 |
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Twenty-two years after the Chernobyl nuclear power station accident in the Ukraine — the worst in history — scientists are reporting insights into the mystery of how plants have managed to adapt and survive ...
