when you have i company like patagonia, they have always had that mission. the owners of the country, they have a way to retire and insure the company's values continue after them. it is a free-market choice, do i want to encumber or free up the market opportunity? there is arguably about $2.70 trillion and investment dollars that are chasing after these types of companies. the market for these companies to grow, there are 60 million consumers that want to thank consciously when they voted product. they believe that they have a mission to that -- commissioner dwight: i agree that companies with lots of shareholders will have difficulty because of the inertia making the conversion. you'd have to educate 2/3, more than 2/3 just to go to the vote. i don't find that to be a particularly compelling argument. they can rally the support for it, or people can't be bothered making the analysis. for small companies that are closely held, it is a matter of them coming together and deciding whether they want to do this. and whether it will give them an economic advantag

to find out what's happening at the bottom of the world, we stop first at the high mountains of patagonia, where you can actually see firsthand the consequences of a warming planet. >> this massive ice is glacier o'higgins. it's been frozen for tens of thousands of years in the mountains of southern chile. o'higgins is spectacular for its beauty. >> [speaking in spanish] >> but for a scientist like gino casassa, it's breathtaking for its speed. >> this was the glacier front position in 1896. >> now o'higgins is morphing into a lake, retreating more than any glacier in south america. the glacier was sitting where we are sitting right now. >> we would have been covered by ice. i think it's a very clear picture that the world is getting warmer and that the impacts which were projected even 10 or 20 years ago are happening right now. >> o'higgins has fallen back nine miles in 100 years, throwing off icebergs that roll as they dissolve into the lake. casassa took us to the face of o'higgins, carefully measuring our approach. it's a dynamic thing. >> yeah, absolutely. >> it's cracking, popping,

known as the good organizers of the patagonia festival of blueness came up with the idea for this spectacle to attract tourists. bear current simpatico such that early morning is the best time for taking to the skies the convoy of balloonists normally starts out at five o'clock in the morning to head towards the starting line. the success of the flight primarily depends on the wind no matter how skillful the pilot might be balloonists get weather forecasts and reports about the force and direction of the wind from ground control safety services but then there is a simpler way of determining the winds direction the whole crew takes part in preparations for a flight normally it includes four people a technician carries out checks to satisfy himself that the balloon is in working order. have a good flight. balloons are raised into the sky by the pilot and the navigator but whether the crew will get home depends on those who stay on the ground. once a balloon lands the crew has to be retrieved from the spot. sometimes inexperienced teams responsible for retrieval can't find crews landing at dus