Word: factor
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Cloud cover is only one element of climate sensitivity. Scientists are also concerned about the earth's ice, which reflects sunlight back into space, making it a cooling factor, while seawater absorbs the sun's heat. That means that as polar sea ice melts because of warming, leaving more open water, the warming process could accelerate - which would then melt more ice. There are also concerns that as the permafrost in the Arctic thaws, it could release massive amounts of methane, a powerful greenhouse gas that would further accelerate warming...
...open the door of his current residence. But then he moved away from the script. His eyes narrowed, his voice grew somber, and he explained how the Cambridge police had “acted stupidly,” how the incident demonstrated that “race remains a factor in this society...
...supporters of legalization may have been handed their most convincing factor yet: the bummer economy. Advocates say that if state or local governments could collect a tax on even a fraction of pot sales, it would help rescue cash-strapped communities. Not surprisingly, the idea is getting traction in California, home to the nation's largest supply of domestically grown marijuana (worth an estimated $14 billion a year) and biggest state budget deficit (more than $26 billion...
...results also shed light on how risk factors like stress can increase the vulnerability of the respiratory system to environmental pollution or allergens. Because asthma involves inflammation in the airways in response to particulates that enter from the air, a separate factor that also increases the body's inflammatory response - like stress - can help create especially fertile conditions for asthma to develop. So a child who feels anxiety in response to parental stress, for example, may already have inflammation in his airways, which makes him more likely to develop asthma because of exposure to environmental pollutants...
...Reva may have one factor going for it: "It has a first-mover advantage," says Hormazd Sorabjee, editor of Mumbai-based AutoCar magazine. He adds that the Reva could become "the Nano of electric cars," referring to the world's cheapest car, the Tata Nano, which sells for about $2,000. But that mantle may not have time to stick. India's Tata Motors, in partnership with the Norwegian electric-car research-and-development firm Miljoebil Grenland, plans to launch an all-electric version of the Nano in Norway early next year...