What have I learnt from my mate's presentations?

I've learnt a lot about many different topics. I've learnt about global warming; about global darkening; about industrial smog and acid rain; about the ozone layer and its problems; about ecological gardening, permaculture and water pollution and about wildfires and deforestation.

Global warming is the increasing of the planet's temperature. The poles are melting and rainfall patterns are shifting.

Global darkening is darkening of the atmosphere that covers the sun. It is mainly caused by aerosols, burning of fossil fuels an the burning of the engines in planes.

Industrial smog and aicd rain are caused mainly from the smoke that the factories and industries in big cities expel. The industrial smog covers the streets of the big s¡cities, and it doesn't go up, and the acid rain is the mixing of pollutant mollecules with the water in clouds.

The ozone layer is a layer found in the stratosphere that protects the planet from the UV radiations. The destroying of this layer is mainly caused by CFC's.

Ecological gardening, permaculture and water pollution are ways to do agriculture without pollutiong at all, and to do it with thing you already have at your disposal. I've also learned that the pesticides pollute the water nad that are bad for uor health.

Wildfires and deforestation are caused mainly by human activity. Many big companies cut a lot of hectares to make furniture and other products. Wildfires also are a big threat for big forests, because the destroy them. In this topic I've also learned about the "Gaviota project" and the blue economy.

You can see more detailed information in this webpage: http://es.padlet.com/MariaAnt/fah5y50962ty

Deforestation

Acid rain

Global darkening

Permaculture