Strong­est proof yet for global warm­ing

Sunday Herald Sun - - NEWS -

A MAS­SIVE US re­port con­cludes the ev­i­dence of global warm­ing is stronger than ever, con­tra­dict­ing a favourite talk­ing point of top Trump ad­min­is­tra­tion of­fi­cials, who down­play hu­mans’ role in cli­mate change.

It’s “ex­tremely likely” — mean­ing 95 to 100 per cent cer­tainty — that global warm­ing is man made, mostly from the spew­ing of car­bon diox­ide into the at­mos­phere from the burn­ing of coal, oil and nat­u­ral gas, sci­en­tists con­cluded.

“Over the last cen­tury, there are no con­vinc­ing al­ter­na­tive ex­pla­na­tions,” the re­port, re­leased yes­ter­day, said.

The re­port is one of two sci­en­tific as­sess­ments re­quired ev­ery four years. De­spite fears by some sci­en­tists and en­vi­ron­men­tal ad­vo­cates, David Fa­hey of the Na­tional Oceanic and At­mo­spheric Ad­min­is­tra­tion and sev­eral au­thors said there was no po­lit­i­cal in­ter­fer­ence or cen­sor­ing of the 477-page fi­nal re­port.

For the first time, sci­en­tists high­lighted a dozen “tip­ping points” of po­ten­tial dan­gers that could hap­pen from warm­ing, in­clud­ing the slow­ing down of the gi­ant At­lantic Ocean cir­cu­la­tion sys­tem that could dra­mat­i­cally warp weather world­wide.

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