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  • Well, let's talk about climate change.

  • Now, people think,

  • "Hey, aren't we getting the solar panels and windmills

  • to be a lot less expensive?

  • And isn't that helping reduce greenhouse gases?”

  • And the answer is, absolutely.

  • But, there's a lot more to do

  • than just taking electricity to zero emissions.

  • There's a variety of things

  • that generate greenhouse gases.

  • We have a lot of sectors of the economy,

  • like manufacturing, that are emitting greenhouse gases

  • that aren't talked about as much.

  • Manufacturing.

  • Everything we make even a cute little squishy like this,

  • that's emitting 21% of the greenhouse gases.

  • The number of buildings in the world

  • is going to double by 2060.

  • It's like we're going to build a new New York City

  • every month for the next 40 years.

  • It's a gigantic amount of materials.

  • Steel, cement, wood, all emitting greenhouse gases.

  • We're going to have to figure out

  • how to make all these things in a different way.

  • And so, we're going to need a lot of change,

  • a lot of innovation,

  • to bring the emissions

  • from all those areas down to zero.

Well, let's talk about climate change.

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B1 中級 美國腔

氣候變化的重大挑戰 (The grand challenges of climate change)

  • 362 11
    April Lu 發佈於 2021 年 01 月 14 日
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