This petition is asking the Obama administration to over rule the recent ban of using terms related to global warming in official documents.
Recently, Florida, Michigan, and Wisconsin have all banned stating "climate change" or global warming" in official documents, along with other terms relating to the subject.
By banning the discussion of global warming, this of course shuts out discussion of an important issue entirely. When you tear out a man's tongue, you are not proving him a liar. You are only showing the world you are afraid of what he might say.