You can browse through the topics here: http://www.projectparadigm.org/
Write a brief statement of your idea (140 characters or less) and include an explanation of your idea. All you need is an idea, you are not required to build or implement your idea.
Your essay will be chosen based on the following criteria:
– Efficacy: how effective is the idea?
– Feasibility: how possible is the idea?
– Originality: how innovative is the idea?
– Presentation: how clear is the idea?
the topic is Biodiversity
