Word: planted
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Dates: during 2000-2009
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...problem is that biofuels are treated as if they were 100% carbon neutral, even though they are clearly not. When ethanol is burned, for instance, it still releases CO2 into the atmosphere. After all, the plants that go to make biofuels are made of carbon, just as oil and other fossil fuels are. Further, the use of biofuels would reduce total greenhouse-gas emissions only if their creation were to increase - or at least not displace - existing plant growth, which naturally takes carbon out of the atmosphere. For example, if the wood chips left over from logging were used...
...pilot year, Ma said, Silk Road Connect integrated the historical, scientific, and cultural significance of the indigo plant into the sixth grade curriculum at five New York City middle schools...
Over the past five years, researcher David E. Boufford and others affiliated with the Harvard University Herbaria—an extensive collection of pressed, dried plant specimens housed at a Divinity Avenue facility—have been working to collect specimens of plant life in the remote mountain range on the Tibetan Plateau...
...International as one of the 34 “hotspots” of biodiversity in the world. According to Boufford, these hotspots only occupy 2.5 percent of the globe’s surface yet account for 35 to 40 percent of the variety in the world’s plant species...
...project’s manager Susan Kelley, an executive assistant associated with the School of Engineering and Applied Sciences, expressed that in terms of plant life, the mountain range is probably the richest part of the North Temperate Zone, which includes North America, Europe, and northern Asia. For example, more than 220 species of “Pedicularis,” a genus of flowering plants, have been found in the area—about 10 times more than in all of North America...