We have to be bold. We have to provide leadership. Now it's true that we disagree on this. The governor said that he doesn't think this problem is necessarily caused by people. He's for letting the oil companies into the Arctic National Wildlife Refuge. Houston has just become the smoggiest city in the country.
When companies are exploring and drilling they are extracting the vegetation and destroying permafrost which can cause harm to the land.
( z1 and :op ( z2 extract :ARG0 ( z3 company ) :ARG1 ( z4 vegetation ) ) :op ( z5 destroy :ARG0 z3 :ARG1 ( z6 permafrost :ARG0-of ( z7 harm :ARG1 ( z8 land ) :ARG1-of ( z9 possible ) ) ) ) :time ( z10 and :op ( z11 explore :ARG0 z3 ) :op ( z12 drill :ARG0 z3 ) ) )