Our Blue Planet Warning: Attempt to read property "ID" on null in /home/frost/public_html/wp-content/themes/frost-science/content-single.php on line 21 February 28, 2022 /home/frost/public_html/wp-content/themes/frost-science/content-single.php on line 30 https://www.frostscience.org/fun_fact/our-blue-planet/">By Kristen Garcia, The ocean covers 70% of the world’s surface. At present, just 2.7% of it lies within a highly protected zone.