artificial emission造句

It is expected that artificial emissions would be concentrated into a far narrower wavelength than that observed.
The scientists, however, add that their data do not argue against the view that artificial emissions _ so-called greenhouse gases _ have triggered the global warming of recent decades.
Just as artificial emissions of carbon dioxide are blamed for the rising temperatures on Earth and a carbon dioxide atmosphere keeps Venus'surface at 850 degrees Fahrenheit, scientists thought Mars might have been warmed by a blanket of carbon dioxide that later dissipated into space.
Theodore A . Scambos, a glaciologist at the National Snow and Ice Data Center at the University of Colorado, said the long life of Larsen B " makes you think there's something particularly unusual about this warming " _ perhaps evidence that the warming has been brought on by artificial emissions of carbon dioxide and other greenhouse gases that trap heat in the atmosphere.
It's difficult to find artificial emission in a sentence. 用artificial emission造句挺难的