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ACT Aspire Science: Choosing Sides in Global Warming 0 Views


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Description:

Which side mentions both land ice and sea ice?


Transcript

00:00

Yeah Oh okay Aspiring science people Here we go Another

00:06

Siri's for you This one on a conflicting viewpoints Well

00:10

kind of again Many people today are studying meteorology on

00:14

the global scale because global warming is you know a

00:16

thing or said better It's a hot topic All right

00:21

moving on There are many contested arguments related to climate

00:24

change One question that's debated involved whether Antarctica is losing

00:30

or gaining ice One side reports that Isis expanding at

00:34

the southern full of the earth This is the opposite

00:36

of what global warming says will or should happen Another

00:40

side claims that well while the inner part of least

00:43

Antarctica is gaining land ice and Arctic up for the

00:47

most part is losing land ice coverage at an increasing

00:50

rate All right let's go to side A East Antarctica

00:53

is many times larger than West Antarctica Parts of the

00:57

East have been showing significant cooling in the past few

01:00

decades Sea ice that was lost in west Antarctica over

01:04

the past three decades was canceled out by increases in

01:08

the Ross Sea region alone Therefore see ice conditions have

01:13

remained stable across the board For Antarctica There's no significant

01:16

change to the massive ice shelves in the east or

01:18

indication that the cap is melting The splitting of ice

01:22

observed might not be uncommon for the western part of

01:25

Antarctica Ice core drilling shows that land ice that the

01:28

pole is in fact getting thicker parts That was side

01:32

eh Now side be turned over the record There we

01:35

go It is important to single out the types of

01:38

ice when talking about Antarctica because sea ice and land

01:41

ice have different trends and effects Measuring changes in the

01:45

land ice of Antarctica is difficult because of the scale

01:48

and complexity Early satellite data showed that loss of ice

01:54

in the West is happening in the east Interior ice

01:57

is actually thickening While there is lost at the edges

02:01

making a balanced or net zero loss of ice in

02:04

the east will more data has been collected and a

02:07

clearer trend has appeared Since two thousand six Land Ison

02:11

east has not been mass balanced and is in fact

02:14

decreasing well Antarctic sea ice has been showing growth since

02:18

the late nineteen seventies The Southern Ocean is warming even

02:22

though sea ice is increasing This is from many factors

02:26

including the hole in the ozone layer and circulation of

02:29

the ocean five and six other Giving all these citation

02:33

things Antarctic sea ice is complex and cannot be assessed

02:38

by simple interpretations Well these findings raise even more concern

02:42

about global warming Right So that was side B Let's

02:45

just move right along into the question Seriously So here

02:48

we go Which side mentions both land ice and sea

02:53

ice Well if you read both side a and side

03:00

be carefully Well we can see that both mentioned land

03:03

and sea ice kind of a lot side A concentrates

03:06

on sea ice but the last sentence very explicitly mentions

03:09

land I see right there because I'd be jumps around

03:12

more than a penguin on the hot plate That's like

03:15

a thing isn't it But it definitely mentioned both sea

03:18

ice here in land ice here So that's it The 00:03:22.38 --> [endTime] answer is d

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