另一件事是，在一些国家，生物燃料作物的种植和收获方式仍然会产生大量的污染——这些污染对大气造成真正的破坏。
The other thing is that in some countries, the way that biofuel crops are grown and harvested still produces a great deal of pollution—really damaging to the atmosphere.
这些污染是由于试图在黑市上再生利用起动机电池的铅而产生的。
The pollution came from attempts to recover the lead while recycling motor batteries on the black market.
美国宇航局利用各种各样的传感器包括MODIS追踪这些污染。
NASA tracks pollution worldwide using a variety of sensors, including MODIS.
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