Maps that show us who we are (not just where we are) | Danny Dorling

248,514 views ・ 2016-12-21

TED


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I'd like you to imagine the world anew.
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I'd like to show you some maps,
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which have been drawn by Ben Hennig,
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of the planet in a way
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that most of you will never have seen the planet depicted before.
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Here's an image that you're very familiar with.
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I'm old enough that I was actually born before we saw this image.
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Apparently some of my first words were "moona, moona,"
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but I think that's my mom having a particular fantasy
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about what her baby boy could see
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on the flickering black and white TV screen.
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It's only been a few centuries
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since we've actually, most of us, thought of our planet as spherical.
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When we first saw these images in the 1960s,
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the world was changing at an incredible rate.
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In my own little discipline of human geography,
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a cartographer called Waldo Tobler
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was drawing new maps of the planet,
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and these maps have now spread,
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and I'm going to show you one of them now.
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This map is a map of the world,
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but it's a map which looks to you
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a little bit strange.
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It's a map in which we stretched places,
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so that those areas which contain many people are drawn larger,
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and those areas, like the Sahara and the Himalayas,
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in which there are few people, have been shrunk away.
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Everybody on the planet is given an equal amount of space.
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The cities are shown shining bright.
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The lines are showing you submarine cables and trade routes.
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And there's one particular line that goes from the Chinese port of Dalian
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through past Singapore,
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through the Suez Canal,
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through the Mediterranean and round to Rotterdam.
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And it's showing you the route
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of what was the world's largest ship just a year ago,
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a ship which was taking so many containers of goods
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that when they were unloaded,
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if the lorries had all gone in convoy, they would have been 100 kilometers long.
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This is how our world is now connected.
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This is the quantity of stuff we are now moving around the world,
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just on one ship, on one voyage,
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in five weeks.
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We've lived in cities for a very long time,
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but most of us didn't live in cities.
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This is Çatalhöyük, one of the world's first cities.
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At its peak 9,000 years ago,
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people had to walk over the roofs of others' houses to get to their home.
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If you look carefully at the map of the city,
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you'll see it has no streets,
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because streets are something we invented.
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The world changes.
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It changes by trial and error.
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We work out slowly and gradually
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how to live in better ways.
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And the world has changed incredibly quickly most recently.
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It's only within the last six, seven, or eight generations
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that we have actually realized that we are a species.
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It's only within the last few decades
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that a map like this could be drawn.
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Again, the underlying map is the map of world population,
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but over it, you're seeing arrows showing how we spread out of Africa
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with dates showing you where we think we arrived
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at particular times.
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I have to redraw this map every few months,
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because somebody makes a discovery that a particular date was wrong.
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We are learning about ourselves at an incredible speed.
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And we're changing.
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A lot of change is gradual.
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It's accretion.
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We don't notice the change
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because we only have short lives,
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70, 80, if you're lucky 90 years.
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This graph is showing you
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the annual rate of population growth in the world.
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It was very low until around about 1850,
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and then the rate of population growth
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began to rise
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so that around the time I was born,
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when we first saw those images from the moon of our planet,
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our global population was growing at two percent a year.
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If it had carried on growing at two percent a year
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for just another couple of centuries,
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the entire planet would be covered
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with a seething mass of human bodies
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all touching each other.
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And people were scared.
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They were scared of population growth
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and what they called "the population bomb" in 1968.
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But then, if you look at the end of the graph,
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the growth began to slow.
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The decade --
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the '70s, the '80s, the '90s, the noughties,
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and in this decade, even faster --
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our population growth is slowing.
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Our planet is stabilizing.
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We are heading towards nine, 10, or 11 billion people
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by the end of the century.
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Within that change, you can see tumult.
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You can see the Second World War.
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You can see the pandemic in 1918 from influenza.
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You can see the great Chinese famine.
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These are the events we tend to concentrate on.
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We tend to concentrate on the terrible events in the news.
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We don't tend to concentrate on the gradual change
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and the good news stories.
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We worry about people.
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We worry about how many people there are.
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We worry about how you can get away from people.
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But this is the map of the world changed again to make area large,
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the further away people are from each area.
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So if you want to know where to go to get away from everybody,
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here's the best places to go.
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And every year, these areas get bigger,
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because every year, we are coming off the land globally.
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We are moving into the cities.
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We are packing in more densely.
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There are wolves again in Europe,
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and the wolves are moving west across the continent.
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Our world is changing.
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You have worries.
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This is a map showing where the water falls on our planet.
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We now know that.
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And you can look at where Çatalhöyük was,
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where three continents meet, Africa, Asia, and Europe,
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and you can see there are a large number of people living there
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in areas with very little water.
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And you can see areas in which there is a great deal of rainfall as well.
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And we can get a bit more sophisticated.
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Instead of making the map be shaped by people,
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we can shape the map by water,
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and then we can change it every month
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to show the amount of water
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falling on every small part of the globe.
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And you see the monsoons moving around the planet,
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and the planet almost appears to have a heartbeat.
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And all of this only became possible
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within my lifetime
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to see this is where we are living.
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We have enough water.
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This is a map of where we grow our food in the world.
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This is the areas that we will rely on most for rice and maize and corn.
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People worry that there won't be enough food, but we know,
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if we just ate less meat and fed less of the crops to animals,
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there is enough food for everybody
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as long as we think of ourselves as one group of people.
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And we also know
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about what we do
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so terribly badly nowadays.
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You will have seen this map of the world before.
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This is the map
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produced by taking satellite images,
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if you remember those satellites around the planet
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in the very first slide I showed,
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and producing an image of what the Earth looks like at night.
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When you normally see that map,
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on a normal map, the kind of map that most of you will be used to,
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you think you are seeing a map of where people live.
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Where the lights are shining up is where people live.
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But here, on this image of the world,
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remember we've stretched the map again.
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Everywhere has the same density of people on this map.
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If an area doesn't have people,
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we've shrunk it away
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to make it disappear.
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So we're showing everybody
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with equal prominence.
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Now, the lights no longer show you where people are,
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because people are everywhere.
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Now the lights on the map,
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the lights in London, the lights in Cairo, the lights in Tokyo,
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the lights on the Eastern Seaboard of the United States,
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the lights show you where people live
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who are so profligate with energy
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that they can afford
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to spend money
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powering lights to shine up into the sky,
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so satellites can draw an image like this.
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And the areas that are dark on the map
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are either areas where people do not have access to that much energy,
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or areas where people do,
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but they have learned to stop shining the light up into the sky.
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And if I could show you this map animated over time,
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you would see that Tokyo has actually become darker,
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because ever since the tsunami in Japan,
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Japan has had to rely on a quarter less electricity
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because it turned the nuclear power stations off.
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And the world didn't end.
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You just shone less light
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up into the sky.
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There are a huge number
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of good news stories in the world.
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Infant mortality is falling
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and has been falling at an incredible rate.
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A few years ago,
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the number of babies dying in their first year of life in the world
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fell by five percent in just one year.
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More children are going to school
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and learning to read and write
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and getting connected to the Internet
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and going on to go to university
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than ever before at an incredible rate,
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and the highest number of young people going to university in the world
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are women, not men.
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I can give you good news story after good news story
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about what is getting better in the planet,
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but we tend to concentrate
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on the bad news that is immediate.
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Rebecca Solnit, I think, put it brilliantly,
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when she explained: "The accretion of incremental, imperceptible changes
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which can constitute progress and which render our era
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dramatically different from the past" --
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the past was much more stable --
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"a contrast obscured by the undramatic nature of gradual transformation,
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punctuated by occasional tumult."
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Occasionally, terrible things happen.
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You are shown those terrible things
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on the news every night of the week.
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You are not told about the population slowing down.
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You are not told about the world becoming more connected.
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You are not told about the incredible improvements in understanding.
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You are not told about how we are learning to begin
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to waste less and consume less.
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This is my last map.
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On this map, we have taken the seas
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and the oceans out.
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Now you are just looking
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at about 7.4 billion people
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with the map drawn in proportion to those people.
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You're looking at over a billion in China,
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and you can see the largest city in the world in China,
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but you do not know its name.
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You can see that India
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is in the center of this world.
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You can see that Europe is on the edge.
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And we in Exeter today
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are on the far edge of the planet.
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We are on a tiny scrap of rock
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off Europe
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which contains less than one percent
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of the world's adults,
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and less than half a percent
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of the world's children.
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We are living in a stabilizing world, an urbanizing world,
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an aging world,
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a connecting world.
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There are many, many things to be frightened about,
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but there is no need for us to fear each other as much as we do,
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and we need to see that we are now living in a new world.
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Thank you very much.
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(Applause)
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