Hanyoyi Biyar Don Ceton Duniya
Hanyoyi biyar don Ajiye Duniya; wani fim ne na Birtaniyya kan batutuwan muhalli da suka shafi canjin yanayi, wanda aka fitar a cikin 2006. Karen O'Connor ne yayi fim ɗin, don babban allo, kuma an harbe shi cikin harshen Ingilishi don isa ga masu sauraro na duniya. Ya haɗada tattaunawa da masana kimiyyar muhalli guda biyar da masana ciki har da Paul Crutzen, James Roger Angel, John Latham, Ian Jones, da Klaus Lackner.

“Hanyoyi biyar” da aka gabatar sune dabarun aikin injiniya:

 ruwan tabarau na sararin samaniya a cikin kewayawa, don nisantar da hasken rana daga duniya
 shukar girgije tare da ruwan teku don haɓaka albedo
 sulfur ya ƙaddamar a cikin stratosphere don ƙara albedo
 hadi na teku da ƙarfe ko urea (nitrogen taki)
 itatuwan wucin gadi (duba kama carbon da rarrabawa )

Tunda na farko hanyoyin uku ba su cire carbon dioxide daga yanayi, zasu kawai rage ɗumamar yanayi amma ba teku acidification. Tunda hanyoyin biyu na ƙarshe zasu cire carbon dioxide, acikin ra'ayi zasu iya rage ɗumamar yanayi da acidification na teku.

Hanyoyin haɗi na waje 

 Hanyoyi Biyar Don Ceton Duniya