Environmental Trivia/clues

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Across
  1. 2. What phenomenon can cause major electromagnetic interference in electronics?
  2. 4. What creature went extinct within a century of its discovery?
  3. 5. Besides nitrogen what is the top element in agricultural run off?
  4. 7. A second six letter word.
  5. 10. What essential for life resource has less than 1% availability at a given time?
  6. 11. Where is 70% of earths fresh water?
  7. 13. A less than five letter word.
Down
  1. 1. What is the most biodiverse biome on earth?
  2. 3. What element is being explored as a clean fuel for engines?
  3. 6. What country's power generation is done almost completely by renewables?
  4. 8. What is the most polluting meat industry?
  5. 9. what is the root like structure of fungi?
  6. 12. What engineering has been proposed as a drastic measure to help solve global warming?