Stratosphere Definition

by Laurent Cousineau
(Montreal)

The stratosphere is a region within the atmosphere that lies between the troposphere and the mesosphere.

Its upper boundary is at about 50 kilometers. However, its lower boundary ranges from nearly 8 km at the poles to as much as 15 km at the equator.

Temperatures in the upper stratosphere will often increase with height because of the solar radiation absorbed by ozone inside the ozone layer.

In the lower stratosphere, temperatures may increase, decrease or even stay the same with altitude, depending on the latitude and the season.

Stratosphere and Climate Change

Due to the greenhouse effect, the temperature in the stratosphere will actually decrease while temperature in the troposphere below will increase.

This is because the greenhouse gases will absorb the sun’s radiation and reflect it back into the troposphere instead of letting it escape the atmosphere altogether.

If the global warming we are facing today was merely due to fluctuations in the sun's solar activity, then both the troposphere and stratosphere should be getting warmer.

However, this is not the case as per data recorded by scientists around the world.

Therefore, abrupt climate change is not only occurring, but it is anthropogenic as well.

Click here to post comments

Join in and write your own page! It's easy to do. How? Simply click here to return to Climate Change Glossary.


Return to Top of Page  

Like This Page?



Recent Articles

  1. Interview With Jonah Bryson: "If we fail to protect the environment, nothing else matters"

    Nov 07, 16 12:21 AM

    We had the chance to speak with Film Director, Musician and Conservationist Jonah Bryson during TIFF 2016. Bryson has directed “The Fight For Bala”, a

    Read More

  2. Climate is Back

    Nov 07, 16 12:19 AM

    As I engage relentlessly in the fight to mobilize a complacent public and encourage reluctant politicians to focus on climate change action, I’ve come

    Read More

  3. Politicians Need to Break Free From Fossil Fuels

    Nov 06, 16 11:39 PM

    It’s time to break free from fossil fuels! It’s not time to promote pipelines and expand tar sands production in an attempt to create short-term jobs.

    Read More

  4. The Tides They Are A Changin'

    Nov 06, 16 11:18 PM

    We are really screwing up the Earth, and not having another one handy we need to get the message out to change our ways before it's too late. We cannot

    Read More

  5. Dying for Your Planet

    Oct 30, 16 02:51 PM

    Have you ever thought about what you value so much that you'd be willing to die for? What immediately comes to my mind is that I would do anything to keep

    Read More





Alternative Energy

Causes

Effects

Evidence

Facts

FAQ

Glossary

History

How to Help

Quotes

Important News

Sign a Petition!