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Latest Science News -- ScienceDaily
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Latest Science News -- ScienceDaily
  • Fire ecology manipulation by California native cultures
    Before the colonial era, 100,000s of people lived on the land now called California, and many of their cultures manipulated fire to control the availability of plants they used for food, fuel, tools, and ritual. Contemporary tribes continue to use fire to maintain desired habitat and natural resources.

  • Epigenetic changes can drive cancer, study shows
    A mouse model has been created providing the first in vivo evidence that epigenetic alterations alone can cause cancer. Epigenetic alterations don't change the DNA sequence but how it is 'read.' In particular, DNA methylation, the addition of a methyl group (or molecule), is an epigenetic switch that can stably turn off genes, suggesting the potential to cause cancer just as a genetic mutation can. Until now, direct evidence that DNA methylation drives cancer formation was lacking.

  • Trees save lives, reduce respiratory problems
    In the first broad-scale estimate of air pollution removal by trees nationwide, scientists have calculated that trees are saving more than 850 human lives a year and preventing 670,000 incidences of acute respiratory symptoms. The study considered four pollutants for which the U.S. EPA has established air quality standards: nitrogen dioxide, ozone, sulfur dioxide, and particulate matter less than 2.5 microns (PM2.5) in aerodynamic diameter.

  • Changes in agriculture increase high river flow rates
    Researchers have examined how changes in rainfall amounts and an increase in the amount of acreage used to grow such crops as corn and soybeans can affect the volume of river water flow in the U.S. Midwest.

  • New brain pathways for understanding type 2 diabetes and obesity uncovered
    Researchers have identified neural pathways that increase understanding of how the brain regulates body weight, energy expenditure, and blood glucose levels – a discovery that can lead to new therapies for treating Type 2 diabetes and obesity.

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