5 Ways Water Pollution is Killing Animals

Human activities are contaminating the world’s water systems and disrupting the lives of animals. From toxic chemical runoff  to the accumulation of litter miles away from land, here are five ways water pollution is killing animals:

1. More Than a Million Sea Birds and Mammals Are Killed Each Year By Ingestion of Plastic

Around 100 million tons of plastic is produced every year, of which 1o percent ends up in the sea. Ocean litter comes from many sources, including trash that washes off city streets, waste blown in from landfills and containers that fall off ships during heavy storms. Once in the water, the debris accumulates in large patches, travels with currents and washes up onshore. This litter is frequently consumed, often with fatal effects, by marine mammals, fish and birds who mistake it for food. The Trash Vortex of the North Pacific ocean consists of trillions of pieces of decomposing plastic that forms a gigantic swirling garbage patch the size of Texas.

2. Chemical Runoff  From Farms Has Caused 400 Dead Zones Around the World

The use of pesticides and fertilizers on farms has increased an alarming 26 fold over the last 50 years, causing serious environmental consequences. Chemical runoff from farms is leaching into nearby streams, waterways and groundwater, killing thousands of insects and fish. The presence of fertilizers in the water alters nutrient systems, resulting in explosive growths of algae that produce harmful toxins and deplete the water of oxygen, and as a result little or no marine life can exist. Scientists have recorded an estimated 400 such dead zones around the world.

3. Noise Pollution is Driving Animals to Extinction

Pollution is not always physical. Sound waves from ships, sonar devices and oil rigs can travel for miles disrupting migration, communication, hunting and reproduction patterns of many marine animals. The deafening noise of gas and oil explorations are so loud that they are causing devastating effects to the sea life residing in our world’s oceans such as mass strandings, reckless diving, the inability to find food and chronic stress. Extreme noise pollution has been known to kill hundreds of dolphins and whales at a time, many of which are already on the brink of extinction.

4. Cruise Ships Dump More Than 250,000 Gallons of Wastewater and Sewage Every Day

Due to lax laws, cruise ships have been operating with little to no environmental regulations, and as a result have caused a great deal of damage to sensitive marine life. Current regulations allow cruise ships to legally dump untreated sewage and other waste once the ships are three miles from shore. This toxic waste is discharged directly into the ocean and contains bacteria, pathogens, medical waste, oils, detergents, heavy metals and other harmful substances, all of which are putting aquatic life at risk.

5. Acid Rain Discharges Toxic Amounts of Aluminum into the Water Systems

When water in the atmosphere mixes with certain chemicals, in particularly those omitted from burning fossil fuels, acidic compounds are formed. Acid rain has been linked to many serious adverse effects on ecosystems, especially aquatic ecosystems on which it falls. Through the discharge of toxic amounts of aluminum into the water, PH levels are altered, killing many animals outright and throwing delicate ecosystems out of balance.

You can help to protect the planet and sustain the world’s ecosystems by supporting environmental groups that are fighting to put a stop to these harmful practices, as well as by making your own conscious decisions regarding waste management, harmful chemicals and earth friendly alternatives to your everyday products.

Photo Credit: Aleria Jensen/a>


Lisa M.
Lisa M.1 days ago

Humans are such an invasive, destructive, useless and parasitic species! Humans should be spayed and neutered!

W. C.
W. C.2 days ago

Thank you.

Valentina R.
Valentina R.3 days ago

Water, land, air, earth, animals, other humans... our pollution kills everything and everyone.

Elizabeth McGowan


Justyna L.
Justyna L.8 days ago


Peggy B.
Peggy B.11 days ago

Great article.

Peggy B.
Peggy B.11 days ago


Freya S.
Freya S.12 days ago

There should be a law that requires people to use methods that prevent further pollution.

Rosslyn O.
Rosslyn O.13 days ago

And 2 plus years on we are still doing the same things,but more often!!! BP just dropped well over 800 barrels of oil into the ocean and due to being way out to sea, are just going to 'see' if it will clean itself up, before it hits land?

Joe Le Gris
Joe Le Gris15 days ago