¿Cómo dice el dicho? ¿Sólo tú puedes prevenir los incendios forestales? O, ¿sólo las cabras pueden prevenir los incendios forestales? Vas a entender la confusión cuando se reúnan las últimas cuadrillas de prevención de incendios de la zona de la BahÃa: Las cabras.
California se enfrenta a un pronóstico de lo que podrÃa ser la peor temporada de incendios gracias a las condiciones de sequÃa y una gran acumulación de yesca. Profesionales de la gestión de incendios están trabajando antes de que sea demasiado tarde para tratar de limpiar la hierba alta y otros riesgos de incendio con la esperanza de reducir la propagación de los incendios inevitables que ya están cruzando el estado.
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Thwaites Glacier, the large, rapidly changing outlet of the West Antarctic Ice Sheet, is not only being eroded by the ocean, it's being melted from below by geothermal heat, researchers at the Institute for Geophysics at The University of Texas at Austin (UTIG) report in the current edition of the Proceedings of the National Academy of Sciences.
The findings significantly change the understanding of conditions beneath the West Antarctic Ice Sheet where accurate information has previously been unobtainable.
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The U.S. Food and Drug Administration and the U.S. Environmental Protection Agency today issued updated draft advice on fish consumption. The two agencies have concluded pregnant and breastfeeding women, those who might become pregnant, and young children should eat more fish that is lower in mercury in order to gain important developmental and health benefits. The updated draft advice is consistent with recommendations in the 2010 Dietary Guidelines for Americans.
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Plants make and store energy from the sun using a process called photosynthesis. This process has evolved on planet earth over millions of years. How can we mess with plant DNA to improve on what nature has evolved?
Three research teams--each comprised of scientists from the United States and the United Kingdom--have been awarded a second round of funding to continue research on news ways to improve the efficiency of photosynthesis.
The ultimate goal of this potentially high-impact research is to develop methods to increase yields of important crops that are harvested for food and sustainable biofuels. But if this research is successful, it may also be used to support reforestation efforts and efforts to increase the productivity of trees for the manufacture of wood and paper and thousands of other products that are derived from wood and chemicals extracted from trees. Another reason why photosynthesis is an important research topic: It has made the Earth hospitable for life by generating food and oxygen.
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Scientists analyzed almost half a million fish bones to shed light on the population history of Pacific herring (Clupea pallasii) in the North Pacific Ocean. Their paper, published in the journal Proceedings of the National Academy of Sciences (PNAS) reveals a decline of unprecedented scale. It suggests that while the abundance of Pacific herring does fluctuate naturally, their numbers have fallen precipitously since commercial fishing started targeting the species in the 19th century.
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