Dear Sr. Cardinez,
Greetings. I am writing to you on the recommendation of Professor Carmelino, who sends his regards to you from our cold campus in northern Ohio.
I am a dedicated environmentalist and I seek to work in Costa Rica. Professor Carmelino has informed me about the mission of your organization. I am interested in both your broad mission of protecting butterfly diversity, and your strategy of youth education programs. As you can see from my attached resume, I have extensive experience with conservation efforts and teaching.
It would be a delight to have the opportunity to work with you at Mariposas Global. I will call you next Thursday to see if you might have any opportunities to put my skills to use in forwarding your mission.
With many thanks,