(2017·黑龙江哈尔滨六中三模)
New genetic analysis has revealed that many Amazon tree species are likely to survive humanmade climate warming in the coming century,contrary to previous findings that temperature increases would cause them to die out.A study, 1 in the latest edition of Ecology and Evolution,reveals the 2 age of some Amazonian tree species—more than 8 million years—and 3 shows that they have survived previous periods as warm as many of the global warming imagined periods 4 for the year 2100.