Pollution timebombs: Contaminated wetlands are ticking towards ignition


Wetlands across the globe have long served as natural repositories for humanity’s toxic legacy, absorbing and retaining hundreds to thousands of years’ worth of pollution.

These swampy vaults have quietly been trapping air and water pollution for thousands of years, protecting the world from some of the worst effects of lead, mercury, copper, nickel and other poisonous materials.

Now, however, a combination of human disruptions and ever increasing wildfires threaten to open these vaults, unleashing their long dormant toxic contents upon the world.

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