An international team of researchers, including Scripps Institution of Oceanography, UC San Diego, geochemist James Day, has found new evidence that material contained in oceanic lava flows originated in Earth’s ancient Archean crust.
For the first time in human history, concentrations of the greenhouse gas carbon dioxide (CO2 ) could rise above 400 parts per million (ppm) for sustained lengths of time throughout much of the Northern Hemisphere as soon as May 2013.
For much of Asia, the pace of life is tuned to rhythms of monsoons. The summer rainy season is especially important for securing the water and food supplies for more than a billion people. Its variations can mean the difference between drought and flood.
The heat generated by everyday activities in metropolitan areas has a significant enough warming effect to influence the character of the jet stream and other major atmospheric systems during winter months, according to a trio of climate researchers.
The world can significantly slow the pace of climate change with practical efforts to control so-called “short-lived climate pollutants” and by bringing successful Western technologies to the developing world, according to three UC San Diego scientists in the journal Foreign Affairs.
Jeffrey B. Graham, a research physiologist at Scripps Institution of Oceanography, UC San Diego, died of cancer at his home in San Diego Dec. 8. He was 70 years old.