The YVO4 crystal fibers were grown by laser heated Pedestal growth (LHPG) method utilizing two CO2 sources.

采用激光加热基座(lhpg)法，用两束CO2激光加热生长yvo4晶纤。

youdao

"CO2 detection could have evolved as a mechanism to recognize CO2-producing sources - for instance, to avoid fermenting foods," they wrote.

“二氧化碳探察可能演变为一种识别二氧化碳生产源的机能——例如，避免发酵食品。”他们写道。

youdao

Novomer prioritizes carbon sources based on purity and concentration of CO2.

Novomer公司更看重纯净度更高的碳来源以及集中于二氧化碳上。

youdao

Normally, where that CO2 comes from would not matter and there are much cheaper sources than air capture.

ECONOMIST: Combating climate change

As for the timescale, fusion certainly wouldn't be available in the short-term, but the problem of providing viable energy sources is not going to get easier even if conservation, CO2 sequestration, fission and renewables are more widely used, and there are currently no other large-scale options beyond the 20-50-year timeframe.

BBC: VIEWPOINT

Here's the problem: According to the Clean Air Act, once the EPA regulates greenhouse gas emissions for autos, it must do so for so-called "stationary sources" that emit the equivalent of more than 250 tons of CO2 per year.

FORBES: Regulations