After seeing some of the emotional, nonsensical "facts" spewed by "scientists" trying to ban turtle keeping / selling in Florida, and also from those trying to support banning pythons, I have no dewy eyed trust that scientists are all honest researchers whose only interest is in finding the truth. Many of them are just as money grubbing as business people and government employees. I am sure there are SOME scientists who will do anything to find the truth, but they have to prove their ideas to me - their words will find no automatic acceptance by me! However, if their ideas SEEM to make sense, then I am willing to at least consider that they MAY be true.
This is actually a good example.
Let's say there's a huge number of pythons being released into the wild in, say, Florida. Observations of animal populations suggest that the more sensitive native species are in decline. Some scientists say that the pythons being released are out-competing local species for food and territory, thereby contributing to the decline and possible extinction of native species. Other scientists say that the decline is natural and the released pythons are a coincidence and are not having a significant effect on local populations. Several politicians move to ban pythons, but most don't go that far. Most just propose to place restrictions on python trade so that while people can still have pythons as pets, it'll take more effort and money to do so thereby making it less likely a non-committed owner will end up with such a pet and eliminate or at least reduce the number of pythons being released into the wild.
Now, according to Rich Z's last post, the smart money is on the scientists saying there is no effect. He opposes any restrictions on the sale or purchase of pythons in Florida, any laws governing their ownership or any regulations or punishments on their release because nature is cyclical and extinctions are natural. There isn't enough data to prove without a shadow of a doubt that mankind is causing these population declines and since such absolute certainty doesn't exist, the best thing to do is nothing.
This is not necessarily wrong, but I believe it's very, very irresponsible. There is enough evidence available to make regulation appropriate. Banning outright isn't necessary, but placing controls to limit and reduce our negative impact on the environment is, quite simply, a good idea.
Leaving the hypothetical behind, basically, mankind is literally reshaping the earth to suit our needs. Minimizing the damage we do to the ecosystem is pretty much necessary since we've become so numerous. There is absolutely no reason not to start forcing corporations
and individuals to shrink their ecological footprint.
Finally, the objections I'm hearing to any and all regulation keep coming back to political gains. That is, many people are objecting to any kind of system of restrictions because they don't want politicians to gain power. Well, we voted them into the most powerful positions in our nations. We can't then use that excuse to keep acting irresponsibly towards our planet. If we don't trust our leaders to lead, then why tolerate them at all?