Observational data of equatorial circulation pattern confirms that the pattern is weakening, a development with important consequences for future rainfall in the subtropics Columbia University School of Engineering and Applied Science News Release 24-Jun-2019 New York, NY–June 24, 2019–For decades, scientists studying a key climate phenomenon have been grappling with contradictory data that have threated…
Guest essay by Philip Mulholland In my previous essay We Must Get Rid of the Carboniferous Warm Period I discussed the role of the polar seas around Antarctica in generating the cold dense oxygenated marine water that dominates the abyssal ocean depths of our modern world. I now want to discuss the role of shallow…
Essay by Jim Steele, Director emeritus, Sierra Nevada Field Campus, San Francisco State University The heat wave and near record-breaking temperatures in Death Valley provides a superb teaching moment to show why CO2 has nothing to do with heat waves whether the record is ever broken or not. Most heat waves are associated with dry…