1.Itwasscientistswhowarnedthatgreenhousegaseswouldwarmtheearthbytrappingheatenergyintheatmosphere.
2.Itisthegreenhouseeffectthatgivestheearth'ssurfacetheaveragetemperatureof15
3.Itisfossilfuelsthatmuchoftheenergyusedtolightandheatourhomescomesfrom.
4.Itisthedevelopedcountriesthatconsumethemostenergyintheworld.
5.Itisforcenturiesthatcarbondioxidehasthetendencytostayintheatmospherewhileothergreenhousegasesstayintheatmosphereonlyforadayorless.
6.Itistheirveryexistencethatlow-lyingcountriesfeelisindangerfromrisingsealevels.
7.Itisenvironmentalistswhohavetriedtostoptheearth'stemperaturerising.
8.Itisfutureclimatechangesandtheireffectsonourenvironmentthatscientistswanttofindoutabout.
9.Itisbyseveralmetresthattheleveloftheseacouldriseintheyearsaheadbecauseofglobalwarming.
10.Itisouterspacethatmightprovideuswithnewenergysourcesinthefuture.