Pollution
Meaning
The presence in or introduction into the environment of a substance which has harmful or poisonous effects.
Pronunciation
UK pəˈluːʃn
US pəˈluːʃn
Example Sentences
- Paris also has some types of pollution like air pollution and light pollution.
- It is now plagued with the familiar urban problems of pollution, traffic congestion, and overpopulation.
- Making hardware requires energy, and recycling parts will reduce air pollution, water pollution, as well as greenhouse gas emissions.
- Sadly, dolphins face many threats, such as pollution, fishing nets, and habitat loss.
- However, human activities such as pollution and overfishing are putting oceans under serious pressure.
- International cooperation is essential because ocean pollution does not stop at national borders.
- However, pollution and rising temperatures are making it harder for the ocean to do these jobs.
- The data collected during [cleanups] helps scientists track pollution trends over time.
- One cleanup [cannot] solve the [ocean's] pollution problem, but it plants an important seed.
- Pollution from farms and cities also washes into the ocean and damages the delicate reef ecosystems.
Learn Pollution in Context
How Oceans Shape Life on EarthMore than seventy percent of our planet is covered by ocean. The ocean is a living system that shapes all life on Earth. Oceans produce more than half of the oxygen we breathe. Tiny plants called phyt...Read story 
Why Coral Reefs Need ProtectionCoral reefs cover less than one percent of the ocean floor, but they support about 25 percent of all marine life. These colorful underwater structures are some of the most important ecosystems on Eart...Read story 
The Journey of Water Around EarthThe ocean covers more than seventy percent of Earth, and it drives one of the most important cycles in nature. Water is always moving - from the sea into the sky and back down to the ground again. Whe...Read story 
What Beach Cleanups Can Teach UsEvery year, millions of pieces of plastic wash up on beaches around the world. Beach [cleanups] are more than just picking up trash. They are powerful lessons about how humans affect the ocean. When v...Read story 
Protecting the Ocean for the FutureThe ocean covers more than 70 percent of our planet, but humans are slowly destroying it. We must take action now to protect the ocean for future generations. Every year, millions of tons of plastic w...Read story
Explore more
Practice Pollution
Read, listen, and practise using “Pollution” in fun stories and activities.