When we started developing the website, we read the posts of Rosane regarding Environment & Manking in our orkut community. She reflects the things so nicely that it is understood very easily by all. So, an idea came to our mind to present her knowledge and innovation through blogs by attaching it to our website. In this way, we can help lots of people (that is the mission of our group).

When we sent her a mail discussing this idea, we got a reply in a day. You yourself read her views on writing the blog:

"The peace I have today is different from the peace I’ve dreamed one day.
Only with time, have I learned that peace is to take responsibilities and fulfill them; is to have serenity in the most difficult moments of life.
Today I want to hear and speak words that build. I want to have the courage to cry or to smile whenever I feel like doing it...
I want to accept with humbleness that I don’t know everything, but I want to share the little I know.
I like to remember that nature is so exuberant exactly because the differences it shows in its creatures. Each one of us is special, on Earth, and we have the mission that the Divine Creator has entrusted us.
I want to bring: peace, joy and much news."

Friday, July 30, 2010

how greenhouse effect influences the oceans.


Records in temperature are being achieved in the seas around the globe. There are evidences that South Atlantic waters are warmer, which increases the possibility of hurricanes in South America. This is occurring because of the greenhouse effect, which is the retention of long wave radiation that the planet relays back to space to maintain the thermodynamic equilibrium. With increasing concentration of gases that produce the greenhouse effect, it is captured a greater amount of heat and this heat eventually warms the atmosphere and the ocean itself. Excessive heat in the ocean surface will be transported by a circle movement; these movements are water going toward the bottom and to other areas, in such a way that over time we will have a global temperature rising in ocean.
Oceans have a higher heat capacity than the rest of the system, it makes these changes happens slowly, which might allows us to adapt to change. As a result we will have the increasing in the sea level. Either by volume expansion or in mass due to melting polar ice caps or ice continent. Another effect also important is that the sea water is basic; increasing the temperature - due to increased CO2 in the atmosphere - will increase the acidity of water and will translate into a very drastic interference in the ecosystem. Starting with, reduction in biodiversity. Not to mention that with the increase in acidity, we will have ocean reduced ability to absorb CO2. The increasing in ocean temperature also changes its pattern of movement triggering changing in how the ocean contributes to the redistribution of heat by modifying the temperature of some regions. Some areas will be cooler than they are today and others will be warmer. A study made by researchers from Germany and South Africa shows that a change has occurred already in the pattern of atmospheric circulation in the South Atlantic due to the increased import from Indian Ocean to South Atlantic, it hasn't been known the intensity and which areas are actually affected, but surely something is coming.

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