The cultivation of plants reflecting some sunlight in the atmosphere could lower the temperatures observed on Earth.
With this device in Europe and North America could reduce the temperature of 1 ° C in summer. This represents the equivalent of a global cooling of 0.1 ° C, 20% of the temperature rise observed since the industrial revolution. Scientists say the choice of crop varieties in order to control the climate. Dr. Ridgwell said: "In selecting among the varieties of current crops, we estimate the most optimistic we believe that the summer temperatures could fall by more than 1 ° C throughout much of North America and the 'Eurasia. Ultimately, the regional climate cooling could be achieved through selection or genetic modification of crops, optimizing their albedo. "