World Water Day

     Today, March 22, 2011, is World Water Day, designated by the United Nations. 

     What better time to pause to consider the wonder of water, how it sustains us and all of life on our blue planet.  Here are some interesting facts about water to think about today:

  • Water covers about 70% of the earth’s surface.  Ours is indeed a watery planet.
  • The overall amount of water on our planet has remained the same for about two billion years.
  • Water moves around the planet in a water cycle.  The cycle has five parts:  evaporation, condensation, precipitation, infiltration, and surface run-off.
  • In a 100-year period, a water molecule spends 98 years in the ocean, 20 months as ice, about two weeks in lakes and rivers, and less than a week in the atmosphere!
  • Groundwater can take a human lifetime just to travel a single mile.
  • Water is a key factor in regulating the earth’s temperature. 
  • Water is the only substance found naturally on the earth in all three states–solid, liquid, and gas.
  • Frozen water is 9% lighter than liquid water, which explains why ice floats on water.
  • Of all the water on earth, only 2.5% is fresh water.  Fresh water is either groundwater or more accessible water in lakes, streams, and rivers.
  • The deep ocean current moves around the planet in a 1,000 year cycle, enriching nutrient-depleted surface waters by carrying them through deeper layers where nutrients are abundant.

2 Responses to “World Water Day”

  1. Elizabeth H. Cottrell Says:

    What an important message, April! Thank you.

  2. Livvie Mellan Shapiro Says:

    Thanks for this, April! Livvie

Leave a Reply

Home | About | Blog | Contact | Newsletter

Earth Connection is proudly powered by WordPress
Entries (RSS) and Comments (RSS).