A) Improve renewable Energy sources.
- Costa Rica is one of the most "green" countries of the world.
- Most of the energy produced is renewable energy.
- Costa Rica is trying to become a carbon-free country. 
- In dry season the need for fossil fuels increase because there is not enough water, so the country is trying to develop different renewable energy sources, not only water.
B) Promote and improve environmental education.
- Better education and studying resources.
- New technology applied to studying in schools, like virtual books and tools. This way, studying will be more fun and easy to enjoy, so it will be more effective and easier to learn.
- Outdoor activities to get children in contact with nature.
- Make children aware of the dangers our society is facing if we don't take care of nature, and teach them the importance of nature.
C) Tourism importance for nature.
- Tourism is a big part of the Costa Rican economy.
- If we maintain nature (which is the main tourism attraction) more people will come, therefore, economy will be affected in a positive way.
- We could make more natural areas protected or private so that they are well maintained; as a result, more people would probably go visit them.
 
I like how you have focused in on one primary issue. :) Here are some questions to help you build your argument and compose topic sentences for your body paragraphs:
ResponderEliminarA) What ideas have you found for reducing dependence on fossil fuels? What type of renewable energy would you propose that we invest more in?
B) What can do as everyday citizens to achieve the carbon-free goal? Perhaps the government could offer incentives to go "green" right where we live and work? Maybe by installing more solar panels and solar-heated water tanks for private businesses and residences?? Improving mass transit??
C) Do you want to invest more in developing ecotourism and enforcing environmental regulations to attract more revenue from travelers and boost local economies?