Explain how global warming occurs on earth, how human activity has contributed to global climate change, and how global climate change affects marine primary productivity and marine animal migration.

As air warms from global warming, it will also transfer heat from the air into the water until it equalizes. The industrial revolution made us able to power engines with fossil fuels therfore the exaust or c02 or carbon goes up into the atmosphere because it is a gas and is warm which is a insulator gas so it keeps the sun's heat in and doesn't let it out