As the Trump administration pulls back from regulations on climate change, many scientists remain worried about the warming of the oceans, glaciers, and sea level rise.

Our science correspondent, Miles O'Brien, has been reporting from Antarctica on a major mission to understand what's happening there.

In his latest report, from the Thwaites Glacier, he looks at other key

research projects that have been part of that trip.

The timing was awkward. New York University glaciologist David Holland and I landed

on the Thwaites Glacier almost precisely when the valiant effort to bore through it and install a suite of sensors

in the ocean beneath reached an unceremonious dead end.

We did not succeed in doing what we wanted to do was to put a weather station in the ocean out there to begin to monitor it.

What we achieved there was nothing.

That's absolutely nothing. A little bit Shakespearean.

Oh, damn, that's cool.

The tragedy became comedy when Dr. Holland asked me to give him a hand, which, as an arm amputee,

is literally all I had to offer.

Yeah.

All right.

But I have a hard time saying no.

Okay. These are empty. Just my speed.

All right.

Let's go!

What are you doing your end?

No, I think we're just dragging.

All right.

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