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In addition to those kinds of investments, we also need investments in research and development.
除了這些投資，我們還需要人們在研發項目中投資。
So what might that look like?
這意味著什么呢？
In 1966, the US invested about a half a percent of gross domestic product in the Apollo program.
1966年，美國百分之五十的GDP被用于投資阿波羅計劃。
It got people safely to the moon and back to the earth.
該計劃幫助人類安全地登上了月球，并順利返回地球。
Half a percent of GDP today is about 100 billion dollars.
而在今天，一半的GDP大概是一千億美金。
So knowing that direct air capture is one front in our fight against climate change,
所以當知道直接捕獲空氣和與氣候變化做斗爭是同一個戰線后，
imagine that we could invest 20 percent, 20 billion dollars.
想象一下我們能夠投資20%的GDP，兩百億美元。
Further, let's imagine that we could get the costs down to a 100 dollars a ton.
更進一步，讓我們設想一下降低成本到100美金一噸。
That's going to be hard, but it's part of what makes my job fun.
這很困難，但也正是我工作中的樂趣所在。
And so what does that look like, 20 billion dollars, 100 dollars a ton?
兩百億美金，一百美金一噸，是個什么概念呢？
That requires us to build 200 synthetic forests, each capable of capturing a million tons of CO2 per year.
這需要我們建造二百個人工森林，每個人工森林一年能捕獲一百萬噸的二氧化碳。
That adds up to about five percent of US annual emissions.
這加起來相當于美國每年碳排放量的百分之五。
It doesn't sound like much. Turns out, it's actually significant.
聽起來好像不多。實際上，效果已經相當明顯了。
If you look at the emissions associated with long-haul trucking and commercial aircraft, they add up to about five percent.
如果你查看長途運輸和商用飛機產生的碳排放，其合計總量就達到了百分之五左右。
Our dependence on liquid fuels makes these emissions really difficult to avoid.
我們對液體燃料的依賴使這樣的碳排放量非常難以避免。
So this investment could absolutely be significant.
所以毋庸置疑，這項研究意義重大。
