Could the same fields that yielded massive amounts of oil be the very place to store unwanted emissions from the burning of oil?  Well the answer may be yes, through a process known as carbon sequestration, that puts CO2 back into the ground rather than releasing it into the air.  According to, a University of Texas team successfully pumped 1,600 tons of CO2 into briny reservoirs of water more than 5,000 feet underground, and did it near the same underground reservoirs that triggered the Texas oil rush more than a century ago.  Indeed, these porous rock formations extend from Mexico to Alabama, and could be an ideal place for storing unwanted greenhouse gases.