00:00When I was outside on my first spacewalk, I was on the dark side of the world, over the Indian Ocean.
00:10And I shut off all the lights in my suit to let my eyes adjust.
00:14And as I came south of Australia in the darkness, we drove through the southern lights.
00:21And they were like pouring underneath my feet and you could see all the colors of it.
00:25I mean, I'd seen aurora from on the surface of the Earth, but to be amongst them, to actually directly be part of that interaction between the sun and the atmosphere and the magnetic field,
00:37all right there visually like a prism or a rainbow or something, that was a real reality check of how it's all related.
00:45And how the energy of the sun and the protection of the atmosphere and the focus of the magnetic field all work together.
00:52It really showed me that this is a system, this is a planetary system.
00:56This goes on all the time, most of the time though we just don't see it.
00:59But this is going on constantly, all the time, how all those things work together.
01:04From orbit you get that type of perspective.
01:07You see the fact that this is a complicated system that is subject to a lot of influences that is going on all the time.
01:14One of the influences that is affecting Earth itself, of course, is the beings that are living on it.
01:21Volcanoes erupting, but also the plant life and the animal life.
01:26And over the last hundred years, I mean, gosh, our numbers have rocketed until seven billion of us are all simultaneously exhaling and eating and turning on our lights in our house and starting up the engines in our cars.
01:39Obviously, that has an effect on the planet and amongst all those other things happening.
01:44You can see some of those effects from space.
01:46You can see with your naked eye.
01:48If you come across Mexico City or Beijing, the pollution is visible from space.
01:55It's like a gray, ugly smear on the surface of the world.
02:00That is man-made local climate change.
02:03If you come across Asia, on my very first flight there was a big inland sea, the Aral Sea.
02:09Still a relatively healthy body of water back in the early 90s.
02:13But over the last 20 years, because of agricultural policies and irrigation policies, the Aral Sea has gone from being the fourth biggest sea on Earth to being virtually non-existent.
02:25It's dried up and we did it on purpose as a species.
02:29We made a conscious decision to allow the fourth biggest sea in the world to turn into a little stinking puddle.
02:37What used to be a shoreline is now empty sand and the remains of the fertilizer that were drained into that sea for decades.
02:46We're obviously changing the climate at a global level.
02:49The key is who is going to be the person that's going to decide to change something.
02:54We can't wait for some other person to change it.
02:58They don't have the imperative to do it.
03:01Especially if they're someone that we elected.
03:03If we elected, they're just our representative.
03:05And the real motivation comes to each of us individually.
03:08That's who has to make the change.
03:11You can't say they or him or her or it.
03:15It's us or me or I that has to make the change.
03:19And it's not going to be perfect.
03:21And it's going to have to get a little bit critical before people are truly going to feel enough pain or enough compunction to actually change what they're doing.
03:28And things are going to get worse before they get better.
03:31But I'm confident this isn't the end of the world.
03:35This is just a problem that we're facing that is going to change things.
03:40But we're going to have to figure out a way to deal with it.
03:48Got enough light?
03:50Yeah, I'm wondering if the sun is setting on us there.
03:52We can turn.
03:53The sun is not only setting on us.
03:57The sun is pagan.
04:01It's random rain.
04:02The sun isn't ready for us so much to be covered in the case.
04:03If we enter this, we see these tyres.
04:05This does not help with.
04:06With the sun are our eyes on us.
04:07We get to see these tyres.
04:09We have to store each of them.
04:10We have to see the chair of the sun that makes sense,
04:11and this is why.
04:12If the sun is the firelight.
04:13I'm going to try it all that way,
04:14and we look so much in this town that always takes place every day.
04:16With the sun, pink and seniors in the sun comes,
04:17which I hope so much more and important.
04:20And the city works.
04:21Instead of building things without putting momentum on us.
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