“A study published in 2009 found that rather than a 1-to-1 ratio, as would be expected if the climate were not warming, the ratio has been closer to 2-to-1 in favor of warm temperature records during the past decade (2000-2009). This finding cannot be explained by natural climate variability alone, the study found, and is instead consistent with global warming.”
excellent talk on the future, potential, and limitations of GPS. wave bubbles! GPS spoofers!
Excerpt from Wernher Von Braun letter to Vice President Lyndon Johnson on April 29, 1961. Here, Von Braun offers a response to the Vice President’s question, “Are we working 24 hours a day on existing programs? If not, why not?” Full letter available here.
“CROPS is a stopmotion film on centre pivot irrigation in the USA. Long water-sprinkler arms rotate around a central pivot, irrigating circular fields of verdant crops in desert or semiarid environments. Often a well, located at the centre of the circle, pumps water up from vast aquifers in the rock formations below, or Rio Grande water is canalized and redirected into the deserts feeding the well. Once the Rio Grande reaches Mexico, it’s riverbed has dried. This trailer was made using 1000 circles cropped in Google Earth.”