Join
Search

Posts Tagged ‘jet stream’

Obama, Kerry and Ministers Meet in Alaska: Why the Arctic Matters

President Obama plans to address ministers and experts from 20 nations at the U.S. State Department conference on Global Leadership in the Arctic: Cooperation, Innovation, Engagement, and Resilience (GLACIER) at the end of August. According to a White House official, President Obama is the first sitting U.S. President to visit Alaska’s Arctic. In a video about his upcoming trip to Alaska, the President pronounced, “As long as I am President, America will lead the world to meet this threat before it’s too late.”

Read More

Bookmark and Share

Smothering Snow, Spiking Sea Levels, and Other Climate Plot Twists: Expecting the Unexpected in the Northeast

When I first started digging into climate impacts, I used to think that the northeastern U.S., where I live, was a pretty good place to have landed. I still think so. It’s unlikely we’ll see historic mega-droughts, like those forecast by some for the U.S. Southwest. We’ll see heat that we’re far from prepared for, but it’ll be hotter still in the South. Our forests are expected to change, but they’re not under pressure like those in the Mountain West, nor are they currently experiencing rising risks of wildfire. We have our own problems, to be sure, like coastal vulnerability and trends in extreme precipitation.

But this week in the news there are two new studies that reminded me to expect the unexpected. While we understand the general pathway of change, the shorter-term directions the climate can take along the way can take us by surprise. Read More

Bookmark and Share

It’s Cold Out But it’s Not the Polar Vortex

The “polar vortex” is synonymous with cold air blasts for Americans. But is it correct to equate polar air with the polar vortex? The answer is no. Read More

Bookmark and Share

The Bering Sea Bomb and the Polar Vortex in our Warming World

A historic storm occurred over Alaska this past weekend as typhoon Nuri merged with an extra tropical system and became a perfect storm. With it also came the chance for more extreme weather for the United States in the form of a small polar vortex event that flooded much of eastern North America with frigid temperatures. But how can we have such cold outbreaks in our warming world? Read More

Bookmark and Share

Wacky Weather, a Warmer Arctic, and a Slower Jet Stream – Is There a Link?

The flow of the jet stream is somewhat like a river – at times, a straight rushing ravine and at other times, a slow twisting meander. It’s almost like the atmosphere is alternately dancing the quickstep or doing a slow waltz. Why does the jet stream change its behavior and how might a warming climate be affecting this central influence on our weather in the U.S.? Let’s take a close look at what’s going on in the atmosphere up above us every day. Read More

Bookmark and Share