April 22,yes,it is today.(Earth Day 2009: The Green Generation.)
If you are always been a big fan of Google, this morning, when you opened your web page,
you would find that your "Good Brother"(GU GE) has changed his icon again.
This is one of the reasons why I like him more than Baidu.
Every year,he launchs a doodle corresponding with this day,as well as some special days you didn't know them before.These doodles are as follows:
Actually, there is no specific theme of international unity.
I think its overall theme has always been is "Only One Earth".
Our country participated in Earth Day activities from 1990(?I am not sure),
since then, a commemory campaign against the deteriorationg ecological environment would be held on every year in our land.Here they come:
Even there is not an Earth Day, we all have the obligation to protect our united home.
If you want to know more about the Earth Day, you can ask your "Good Brother".
I think what he tolds you would be to your satisfaction.