- Through the thermal expansion of water and ice melt, climate chaos is causing sea levels to rise, threatening coastal population centers.
- Many pesticides, fertilizers and animal pharmaceuticals end up in rivers, coastal waters, and the ocean, resulting in oxygen depletion and toxins that kill or maim marine plants and shellfish.
- Factories and industrial plants discharge sewage and other runoff into the oceans. This too results in oxygen depletion and toxins that kill marine plants and shellfish. In the U.S., sewage treatment plants discharge twice as much oil each year as tanker spills or drilling disasters.
- Oil spills and nuke spills like Fukushima pollute the oceans, although air pollution is responsible for almost one-third of the toxic contaminants entering water. Microplastics dumped by cruise ships, container ship spills, or factories and garbage dumps on land or rivers will soon outweigh all the fish in the sea.
- Invasive species such as poisonous algae, cholera, and countless plants and animals have entered harbor waters and disrupted the ecological balance.
- The United Nations Food and Agriculture Organization estimates that 31.4 percent of fish stocks are either fished to capacity or overfished. As climate changes rapidly and microplastics take their toll, the capacity of fish stocks to replenish will drop dramatically, leading to fishery exhaustion, fish population extinctions, and widespread famines.
A Prosperous Way Down (2001), the last book by Howard T. and Elisabeth C. Odum, has shaped politics and planning as…books.google.com.mx
The oceans are not merely our birth home, they sustain us now. It is possible to live within their limits and the limits of the good earth. The sooner we can learn that lesson, the better off we will be.