My paleontology and biology are not what they need to be to comment fully on this, but I doubt it, to be honest with you. The human impact on the global environment can be measured in a couple of centuries at best. Mutations occur spontaneously all the time. Most are non-beneficial, and the animals carrying the mutant gene are eliminated by natural selection (they get eaten). Those mutations that aid survival are sometimes passed on to succeeding generations and gradually become a dominant genetic trait, and thus a species evolves, or so the theory goes. It takes thousands of years, however.