I think that I learned about sustainability in my house, with my mom, but I am not sure. Anyway the green trend have been appearing in the means of communication in these decades, so its impossible not to hear about it. In fact the biggest industries are taking advantage of these trend and are incorporating the terms of recycle to convert their image, but in the essence they are still the same.Like the green spot in Jumbo, where you can leave your plastic bags, your bottles or your tetrapak. It is really very small and its impossible that it can contain all the waste that the supermarket leaves. The same happens with the reusable bags, and the ones that are "biodegradable". There is something beyond only recycling, it is about changing the way we are living. In my house we collect all the organic waste in a can, and once a week I leave it to a box in our neighborhood where we have worms so they can made humus. Since we do that the waste of my house has been reduced to a half of what it was before. Also I try to reuse the maximum of the stuff we use to trow up, but the most important thing is to reduce the quantity of stuff we buy that we don't need. Also I harvest some vegetables from an orchard we have here in the park of the university, so there we are reducing the carbon footprint of all the contamination that the agriculture are generating there days, its is a very small contribution but it have change my vision of what I am eating every day. I have a bike and i use it around my neighborhood or when I have to go to the center of the city,but I don't use it every day because my house is very far of where I study, and I don't have the resistance so I use the transantiago. But i Think Santiago needs more cycling culture, to respect the cyclist and motivate people to use their bikes, for example with more cycle paths, not just for riding, but for a serious mobilization in all the city.