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  1. 19303

    You state in this article that in the last century, the average global temperature has risen about 0.6C. I suspect that most of the sensors in use today are not in the precise locations of thermometers 100 years ago. Also back then, there were wide areas of the globe that were probably not being monitored […]

    By Science News
  2. Ecosystems

    Spring Forward

    Scientists who study biological responses to seasonal and climatic changes have noted that the annual cycles for many organisms are beginning earlier on average, as global temperatures rise.

    By Sid Perkins
  3. Math

    Turtle Tracks

    One way to describe a geometric figure is in terms of the path generated by a moving point.