Coral Reef Destruction and Marine Ecosystem Collapse

Puerto Rico's coral reefs — among the most biodiverse marine ecosystems in the Caribbean — are in severe decline, a crisis driven by the intersection of climate change and colonial environmental neglect.

The Decline:
- Puerto Rico has lost over 50% of live coral cover since monitoring began in the 1970s
- Some reef systems have lost up to 80% of their coral
- Coral bleaching events have intensified in frequency and severity
- Mass bleaching events in 2005, 2010, 2019, and 2023 devastated reef systems

Causes:
- Climate change: Rising ocean temperatures cause coral bleaching; ocean acidification weakens coral skeletons
- Coastal development: Construction runoff, sewage, and sedimentation smother reefs
- Agricultural runoff: Pesticides and fertilizers from colonial-era monoculture agriculture
- Military contamination: In Vieques, naval bombing contaminated surrounding marine environments with heavy metals and explosives residues
- Overfishing: Declining fish populations disrupt reef ecosystems
- Sewage: PRASA's aging infrastructure allows untreated sewage to reach coastal waters

Impact:
- Fisheries decline threatens food security and fishing communities
- Reef loss reduces natural protection against hurricane storm surges, making coastal communities more vulnerable
- Tourism revenue (reef-dependent) declines
- Biodiversity loss affects the entire marine food chain

Colonial Dimensions:
- Puerto Rico cannot set its own environmental regulations for waters within federal jurisdiction
- Federal climate policy (over which Puerto Ricans have no vote) determines emissions trajectories
- Military contamination in Vieques continues to affect marine ecosystems
- The fiscal control board's austerity measures have reduced environmental monitoring and enforcement
- Infrastructure underfunding (sewage treatment) has colonial roots

The coral reef crisis illustrates how environmental destruction in colonial territories is compounded: the colonized bear the consequences of climate change they did not cause, environmental degradation from military and industrial activities they could not prevent, and infrastructure failures from systems they cannot adequately fund.