A method for lowering global temperature, comprising: conveying a certain number of empty barges to areas having floes in abundance in the Arctic and the Antarctic, then loading gathered floes into the empty barges by using a belt conveyor, and thereafter driving the barges to ports of deserts closest to the areas, for example, driving the barges loaded with floes in the Antarctic to Australia and the barges loaded with floes in the Arctic to the Sahara; pouring the ice water into trenches in which banks on either side are planted with some tree seedlings and grass suitable for the local desert, preferably, eucalyptuses for Australia deserts and populus euphraticas for the Sahara. Trees planted in the northern and southern hemispheres every year are no less than two hundred thousand square kilometers in terms of area, preferably one hundred square kilometers in Australia and one hundred square kilometers in the northern part of the Sahara.
