There is not shortage of kooky assumptions made about those who are making an effort to lead a sustainable lifestyle - and in fact, there are a lot of kooky things people do in order to lead a sustainable lifestyle - but if you are able to let go of the natural judgements and assumptions that tend to come to mind when presented with ideas about sustainable living, you just may realize that it is not those who pursue sustainable living practices who are kooky, but is instead those who do not pursue sustainable living practices!
One of the most important things those with a focus on sustainable living come to understand is that the planet is currently in a place where it is decaying - but that it is not too late to get back on the right track; the more you start to learn about the state of the environment, the more you will come to understand that each of us must do our parts, putting the planet in a position where it can begin to recover from the damage we have done to it, and bringing it back to the purer state it was in centuries ago.
Another element that is important in this area is taking care of our own bodies - and because our bodies have developed in such a way that they are supposed to be able to thrive in the world as it was a few hundred years ago, the best way to take care of our bodies is by eating the way people ate several hundred years ago; this means eating foods that can be hunted or gathered, and eating them in their natural state - not adding preservatives and hormones to them, but consuming them in their purest possible form.
And of course, sustainable practices with clothing are the best way to go; for instance, hemp clothing can look great, and it is both breathable and sturdy, so that your skin will feel comfortable, your clothes will last a long time, and the planet will continue to thrive under our modern watch.
If each person on Earth were doing their part to help make the planet a better place to live, and to help the environment recover, we would not have any problem getting our planet back to the place where it is supposed to be; the truth of the matter, however, is that not everyone on the planet will do their part, and this means that those of us with an awareness of what is going on (and a desire to improve the current plight) must do more than our share! We must do everything we can to protect the planet, and we must do everything we can to protect others and educate them on what is currently occurring.