Scientists Use Sunlight to Make Fuel From CO2 - Solar-thermal process yields carbon monoxide. Concentrator *appears* to be about 48 square meters, "to make 2.5 gallons of fuel" per day. (January 4, 2008)
Ghosts of Climates Past - Can studying the red deserts of Mars, the thick atmosphere of Venus, and the methane seas of Titan help us to predict our own planet's climatic future? [Seed] (June 6, 2007)
Potent and Rare Greenhouse Gas Identified - Article on rising concentrations of a newly identified synthetic fluoride that traps heat more effectively than all other known greenhouse gases. [FluorideAlert.org] (July 28, 2000)