There are many words we could use to describe the 2016 US presidential campaign.

To maltress, divisive, vulgar.

Over the past few weeks, we've tried to offer insight into some of the deeper issues underlying all the ranker.

We've looked at the hidden frames that shape our political views.

If you have two different views of the nation, you may have two different views of the family.

An examined the biases that women face when they seek higher office.

I came home that night, I was so upset and demeaned to use the word that I thought,

okay, that's it, I can't take this anymore, I'm going to quit.

We've also talked about topics that have surfaced over and over again in the election.

Topics like immigration, income inequality, and stop-and-frisk policing.

Today, we'll conclude our series with a favorite episode from our archives.

It's about an issue that didn't get much attention during the election, but will surely confront the next administration.

Climate change.

This is Hidden Brain, I'm Shankar Vedantam.

Last year, my family and I took a vacation to Alaska.

This was a much-needed, long-planned break.

The best part? I got to walk on the top of a glacier.

The pale blue ice was translucent.

Sharp ridges opened up into crevices dozens of feet deep.

Every geological feature, every hill, every valley, was cutted in ice.

It was a sunny day and I spotted a small stream of melted water.

I got on the ground and drank some.

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