This week, we will tell about a study linking activity on the sun to changes in Earth's climate.

VOA: special.2009.09.29

The report says that, at maximum activity, the small increase in sunshine over several years causes a small temperature increase in Earth's atmosphere.

VOA: special.2009.09.29

Other threats include human pollution, acidification from carbon dioxide and rising temperatures in Earth's atmosphere.

VOA: special.2009.05.12

"We are active now in one hundred ninety countries and it's estimated that one billion people participate in Earth Day events around the globe now."

VOA: special.2010.04.21

Those changes include water shortages which could increase from rising temperatures in Earth's atmosphere.

VOA: special.2009.01.20

The number of man-made objects in Earth orbit has been growing each year.

VOA: special.2009.04.01

This week,we will tell about an agreement to limit temperatures in Earth's atmosphere.

VOA: special.2010.01.19

Usually,this requires near freezing temperatures, light winds and changing conditions in Earth's atmosphere.

VOA: special.2010.01.05

Usually,this requires near-freezing temperatures, light winds and changing conditions in Earth's atmosphere.

VOA: special.2011.01.11

They spent ten days in Earth orbit during March,nineteen sixty-nine.

VOA: special.2009.07.08

Winter conditions are affecting many countries in Earth's northern hemisphere.

VOA: special.2010.02.02

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

When not on the slopes, Weibrecht takes classes at Dartmouth College and plans on eventually earning his Bachelor of Arts in earth science.

VOA: standard.2010.02.09

They warn that the amount of junk in Earth's orbit is increasing and, as it does,the risks to satellites and space vehicles,also rise.

VOA: standard.2010.07.24