The world’s coasts are being urbanized at a very rapid rate. It is estimated that more than half of today’s world population live in coastal areas (within 60 km from the ocean) and this number continues to rise. Coastal areas are also the most visited by tourists across the globe. Which of the following threats to the ocean is most likely NOT posed by human actions? A. Damaged sea turtle nesting sites
B. Pollution of marine resources
C. Higher hurricane wind speed
D. Damaged coral reefs