Many people think that the Industrial Revolution was the first time people began to have a major effect on the earth's ecology.

VOA: special.2011.04.26

Darwin said the Galapagos brought people near "to that great fact that mystery of mysteries the first appearance of new beings on earth."

VOA: special.2009.12.16

"And half of the people on planet Earth every day use wood or biomass for cooking.

VOA: special.2010.02.01

And,as they talked, could see pictures of the moon people on Earth on their television sets.

VOA: special.2009.07.08

Doctor Monfort says many people are needed in the future to keep endangered animals on Earth.

VOA: special.2010.06.22

He said the Earth is like a large mechanical device that will survive only if people living on it know how to operate it correctly.

VOA: special.2010.05.30

For the past week people gathered on the National Mall in Washington,DC to take part in Earth Day activities.

VOA: standard.2010.04.25

What and how the Japanese eat, he says,explains why they are the healthiest people on earth.

VOA: standard.2010.02.23

It can ensure that poor,rural people, whose lives and livelihoods, depend on the earth's productive capacity, have the means to produce more and to produce it better, GDP growth generated by agriculture has been shown to be at least twice as effective in reducing poverty as growth in other sectors. In recent years, more attention is being paid to the importance of smallholder farms.

VOA: standard.2010.03.29