Global warming is caused by greenhouse gases like carbon dioxide trapping heat in the atmosphere. The oceans absorb much of this increased heat and carbon dioxide, leading to changes like rising temperatures, shifting currents, and acidification. These changes threaten marine life and ecosystems by disrupting food sources, forcing migrations, damaging coral reefs, and allowing invasive species to outcompete natives. Without action to address climate change, its impacts on the ocean environment will continue to intensify.

1. The Effects of Global Warming on the Marine Environment

3. How Global Warming Works