our population has only increased by 23.3 percent...

Now you can understand it.

Increase

While the optimality of its outputs is decreasing.

increasing Y

The increase in juvenile delinquency is a serious problem.

It's one of the hundreds of favelas in Rio.

That's an accurate reflection of a very long history of steady growth of the electric industry in this country, growth at a rate of around 7 per year, which gives you doubling every 10 years.

Here's what it looks like in 2002, 2006, 2008.

The number of tourists has increased greatly in recent years.

The number of tourists has increased greatly in recent years.

This city has been increasing in population year after year.

Enhancing grav plating.

It just keeps going up. It is relentless.

Juvenile delinquency is on the increase at a rapid pace.

In China in the last 20 years, it increased from 20 to 50, and it's still increasing.

The number of visitors to Singapore has increased year by year.

We'll grow by six cities of 12 million people a year for the next 30 years.

Once we start getting into the positive numbers, we just explode.

What happened is a market that didn't exist all things have just come together, and it's become the year of online education, or it's become the year of the network, or it's become the year of the mobile phone or smart phone.

Within just 50 years that's one hundredth of one millionth of the Earth's age the amount of carbon dioxide in the atmosphere started to rise, and ominously fast.

Well, if it takes a fixed length of time to grow 5 , it follows it takes a longer fixed length of time to grow 100 .

Canaries used to be used as kind of biosensors in mines.

Trade between the two countries has been steadily growing.

There were just 254 left.

Now there are 880. They're increasing in population by three percent a year.

But in the 1970s, some countries caught up.

So I go to one hundred and twenty five.

Byline two should read Mini prod forecast increase choco ration, April 1984 , from 20g to 25g per week.

And the biomass this is the most spectacular change 4.5 times greater biomass on average, just after five to seven years.

OK, what is happening?

We've only been around for the past 200,000 years as a species, yet we've reached a population of more than six and a half billion people.

But if India grows at something like eight percent, income per year per person will go to 16 times by 2050.

And you can see that it kind of hockey sticks up around the 1960s and '70s, and it's on kind of a nice trajectory right now.

This was kind of the defining slogan.

So how much do we have to go to from 150 to 225?

This is a graph from NOAA's ocean and human health initiative, showing the rise of the infections by vibrio in people over the last few years.

Where, at the moment, we have something between six and seven billion people, it will grow to about nine billion in 2050.

So the assumption that we're making in this problem, and I think that the problem wants us to make, is that whatever the pattern of growth was in these three years, that they continue all the way to 2006.

So that's what we want to talk about its just ordinary steady growth.

In 1989, these isolated tears in the fabric of our universe began to increase in frequency.

The bottom line is, whether you believe the United Nations, or any of the other think tanks in the next 20 years, all human population growth on this planet will be in cities.

TED was a small exclusive conference that very few people had been to.

So, income goes up, then that increases demand.

I see now a 15 over here for this maze where you have to go down,