Zimmer spoke last month at New York University's Journalism Institute.

齐默上个月在纽约大学新闻学院发表了讲话。

In the non-shaded group, about 18 percent of apples suffered sun damage that day, Zimmer said.

吉玛称，在无遮挡的组别中，大约18%的苹果在当天被晒伤。

That is because Zimmer is taking advantage of an auditory illusion caused by something called a Shepard tone.

那是因为 Zimmer 正在利用一种叫做 Shepard 音调的东西引起的听觉错觉。

Zimmer argues that this type of ecosystem with deep-rooted grasses would be much more efficient at absorbing greenhouse gases from the atmosphere.

齐默认为，这种有深根草的生态系统将更有效地吸收大气中的温室气体。