Slang Definition. Words that are not a part of standard vocabulary or language and are used informally are called slang. These words are mostly used in speech rather than in writing.
Wildlife is already being affected by global warming. You have to observe the basic trends of global warming. Deforestation is one of the biggest contributor to global warming and also affects wildlife as it leads to habitat destruction.
Global climate change has already had observable effects on the environment. Glaciers have shrunk, ice on rivers and lakes is breaking up earlier, plant and animal ranges have shifted and trees are flowering sooner.