costa rica geography
How have people affected costa rica?
For geography I have to talk about the different ways that people and population have affected costa rica. The directions are to tell how humans have negatively affected the location and to be specific, but I cant find anything that talks about how people have affected the country at all!
Thanks!! 
There is a controversial documentary about a Asian mafia that cuts the sharks fins off sharks in Costa Rica to sell in CHina called SHark Water http://www.sharkwater.com/ that might help you a little.
Also the Leather Back sea turtles are almost instinct now because people used to eat there eggs and also turtle meat but now the sea turtles are protected.You can read about it here http://blog.natureair.com/index.php/2009/08/serious-threat-to-costa-ricas-national-parks/
More CR Sea Turtle info http://www.costarica-nationalparks.com/lasbaulasnationalmarinepark.html
http://www.leatherback.org/lasbaulas/costa-rica/Las_Baulas/Project/Index.html
Maybe you can talk about those things if you learn more about the subject and make research on it. It might help to watch that above documentary im talking about.
Volunteer in Costa Rica with Cross-Cultural Solutions