Sure some habitat loss is due directly or indirectly to climate change, like polar bears, seals, and penguins losing the ice they need to breed and/or feed. But other instances are completely unrelated. For example, monarch butterflies in North America have experienced huge decreases in population due to an increase in herbicide use that destroyed massive numbers of milkweed plants, the only plant they lay eggs on, as well as destruction of the trees the monarchs over winter on in Mexico (eg through clear-cutting for avocado farms). Climate change has also hurt monarchs in various ways, but the specific issue of monarch habitat loss is generally unrelated.