What's the main reason for the seasons on earth?

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by Jeff Renner

Bio | Email | Follow: @Jeffrennerwx

KING5.com

Posted on September 18, 2009 at 3:51 PM

Updated Thursday, Jan 14 at 9:20 AM

What's the main reason for the seasons on earth?

The reason is the tilt of the earth's axis. When the northern hemisphere is tilted toward the sun, the solar radiation is more direct and intense, and "we" experience our warmest temperatures-summer. When the northern hemisphere is tilted away from the sun, the solar radiation is less direct and intense, and our part of the globe experiences our coolest temperatures-winter.

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