snows in Buenos Aires: the beauty of an ecological disaster 
All were excited in front of this miracle that Nature gave us, but we must realize that global warming is the result. Occur with increasing frequency and temperature extremes such unusual phenomena as snow in this city. Alternating with floods and prolonged droughts are affecting everyone in the world. The accumulation of carbon dioxide in the atmosphere is catastrophic and as yet not been made aware of environmental damage, fossil fuel consumption is increasing day by day. Let's help clean up the world of the future, consume only the energy current mortgage Wasteful Earth of tomorrow!
China heads the list of polluters 
I find it regrettable that the development of the country's economy becomes increasingly degraded environment. "Chinese authorities have proposed to replace the excessive consumption of fossil fuels by using alternative energy? Welcome development, but not carbon dioxide emissions.
solar pasteurizer, a very simple activity. 
This activity uses resources that are readily available and can be worked with students with no major complications. It is useful to perform heating chart, as is suggested because at stake is knowledge of various areas (mathematics, technology, computers, etc.).
solar devices (animated) CONCEPT MAP 
The animations can be seen as following from the solar resource can be obtained by simple devices, energy useful to humans. I hope that visitors excited about the work and reach more and more interested by this gift from nature. I apologize, because work is still incomplete. Your cooperation is going to enrich therefore :
received suggestions!
