0 a gradual increase in world temperatures caused by gases such as carbon dioxide that are collecting in the air around the earth and stopping heat escaping into space --
1 a gradual increase in the earth’s temperature, caused by gases, esp. carbon dioxide, surrounding the earth --
2 a gradual increase in world temperatures caused by gases in the air which prevent heat escaping into space and are a big threat to the future of the earth: --
We can complete it step by step however long the road is and it can't be completed however short the road is if you don't even mark your footprint.
Vi kan slutföra det steg för steg hur lång vägen än är och den kan inte slutföras hur kort vägen än är om du inte ens markerar ditt fotavtryck.