How Fast is Global Climate Changing?
From: Christopher Joyce, NPR in ENN.com
There's plenty of
evidence that the climate has warmed up over the past century, and climate
scientists know this has happened throughout the history of the planet. But
they want to know more about how this warming is different.
Shaun Marcott, a
geologist at Oregon State University, says "global temperatures are warmer
than about 75 percent of anything we've seen over the last 11,000 years or
so." The other way to look at that is, 25 percent of the time since the
last ice age, it's been warmer than now.
You might think, so
what's to worry about? But Marcott says the record shows just how unusual our
current warming is. "It's really the rates of change here that's amazing
and atypical," he says.
Essentially, it's warming up superfast.
Read more at NPR.