But today, most species have been pushed into small areas by human population pressure.

From what I learned in school, population pressure is the ultimate cause of every war.

We had to do something to relieve the population pressure on our world.

"Population pressure didn't get us to the moon in 1969," he said.

Do you honestly think Earth would have gone into space without population pressure and pollution?

The policy of university education initiated in the 1960s responded to population pressure.

They'd been able to survive there, and even increase in numbers until population pressure began to affect them.

Population pressure really doesn't explain it Neither does a dying sun.

The biggest reason for a hot stain to develop is population pressure.

This led to population pressure that hadn't been experienced in several generations.