EarthSecond world war bombers changed the weather Allied bombing raids inadvertently experimented on the weather by producing huge contrails that affected local temperatures ¿ìè¶ÌÊÓÆµ
EarthGrowing sugarcane could help cool Brazil Converting Brazil's existing farmland to sugarcane for biofuel could slightly cool the local climate ¿ìè¶ÌÊÓÆµ