ScienceDaily: In the hotly debated arena of global climate change, using short-term trends that show little temperature change or even slight cooling to refute global warming is misleading, write two climate experts in a paper recently published by the American Geophysical Union — especially as the long-term pattern clearly shows human activities are causing the earth’s climate to heat up. In their paper “Is the climate warming or cooling?’ David R. Easterling of the National Oceanographic and …