Sentences with phrase «past warm spells»

This raises the possibility that past warm spells were warmer than today and NOT shown by the proxies.

Not exact matches

Some polar bear specialists warn that the pace of projected human - driven warming could present greater challenges than prolonged warm spells of the past.

The paper also finds that several significant past climate fluctuations — including a warm spell that peaked around 1100 A.D. called the medieval warm period and the so - called little ice age from the 1400s through the 1700s — were global in scope.

The beetle is now wiping out a whole ecosystem, high - elevation whitebark pine forests, that saw only limited beetle outbreaks during warm spells in the past.

An unusual warm spell over Greenland during the past week, along with warm onshore winds bringing rain to the southwest coast of the island.

Knowing how giant sequoia trees responded to a 500 - year warm spell in the past is important because scientists predict that climate change will probably subject the trees to such a warm, dry environment again, said Swetnam, a UA professor of dendrochronology and director of UA's Laboratory of Tree - Ring Research.

I appreciate your comments BUT a couple of brief warm spells (which I mentioned in my previous comment), or even the warm October 2013, don't negate the past 3 years of record cold weather.

In table SPM - 2 of the latest IPCC report, confidence on trends for warm spells and heat waves for the future (by way of modeling) is greater than recorded (past) trends of the late 20th century.

(03/22/2012) Central U.S. and parts of Canada have seen over a thousand record temperatures shattered over the past week and a half, as an abnormally - long and bizarrely - hot warm spell moves across portions of North America.