Our environment is changing due to human actions. From cutting...
Earth and Space Science51 views·Updated Jun 13, 2026·2 pagesHow Humans Affect Our Planet
1
of 2
Human Impact on the Environment
When humans develop land, release chemicals, or build industries, we change our environment. These changes often harm natural ecosystems in ways that can last for generations.
Deforestation happens when forests are cleared for fuel, livestock pasture, plantations, or human settlements. Without trees, we lose biodiversity and important plants that produce oxygen and remove carbon dioxide from the air.
Overpopulation occurs when too many people live in an area that can't support them. This leads to excessive waste production including hazardous, radioactive, and industrial wastes that harm environments.
Did you know? One of the biggest environmental threats is pollution from fossil fuels, which causes smog, acid rain, and contributes to ozone depletion!
Other harmful human activities include irrigation (which affects soil and water quality), soil erosion (when plants that hold soil are removed), mining (causing sinkholes and water contamination), and war (which can devastate large areas with modern technology).
2
of 2
Human Activities and Their Environmental Impact
People impact the environment in many ways beyond what you might expect. The oil shale industry pollutes air and water during extraction and processing, while releasing carbon dioxide that contributes to climate change.
Pesticides might seem helpful for growing food, but they're major environmental troublemakers. Over 95% of sprayed pesticides miss their target species! These chemicals contaminate land and water, contribute to global warming, and damage the ozone layer.
Our daily transportation choices also affect the planet. Cars, planes, and ships burn petroleum, creating air pollution and releasing carbon dioxide that warms our climate.
Important! Human activities have three major environmental consequences: ozone layer depletion (letting in harmful UV rays), global warming (causing extreme weather), and species extinction (from hunting, pollution, and habitat loss).
These environmental problems aren't just about plants and animals—they affect our lives too, through changes in weather patterns, food production, and even the air we breathe.
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Our AI companion is specifically built for the needs of students. Based on the millions of content pieces we have on the platform we can provide truly meaningful and relevant answers to students. But its not only about answers, the companion is even more about guiding students through their daily learning challenges, with personalised study plans, quizzes or content pieces in the chat and 100% personalisation based on the students skills and developments.
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You can download the app in the Google Play Store and in the Apple App Store.
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Most popular content: Human Impacts on the Environment
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Earth and Space Science51 views·Updated Jun 13, 2026·2 pagesHow Humans Affect Our Planet
Our environment is changing due to human actions. From cutting down forests to polluting water, humans impact Earth in many ways. Let's explore these effects and understand why they matter to our planet's health.
1
of 2
Sign up to see the content. It's free!
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Human Impact on the Environment
When humans develop land, release chemicals, or build industries, we change our environment. These changes often harm natural ecosystems in ways that can last for generations.
Deforestation happens when forests are cleared for fuel, livestock pasture, plantations, or human settlements. Without trees, we lose biodiversity and important plants that produce oxygen and remove carbon dioxide from the air.
Overpopulation occurs when too many people live in an area that can't support them. This leads to excessive waste production including hazardous, radioactive, and industrial wastes that harm environments.
Did you know? One of the biggest environmental threats is pollution from fossil fuels, which causes smog, acid rain, and contributes to ozone depletion!
Other harmful human activities include irrigation (which affects soil and water quality), soil erosion (when plants that hold soil are removed), mining (causing sinkholes and water contamination), and war (which can devastate large areas with modern technology).
2
of 2Sign up to see the content. It's free!
- Access to all documents
- Improve your grades
- Join milions of students
Human Activities and Their Environmental Impact
People impact the environment in many ways beyond what you might expect. The oil shale industry pollutes air and water during extraction and processing, while releasing carbon dioxide that contributes to climate change.
Pesticides might seem helpful for growing food, but they're major environmental troublemakers. Over 95% of sprayed pesticides miss their target species! These chemicals contaminate land and water, contribute to global warming, and damage the ozone layer.
Our daily transportation choices also affect the planet. Cars, planes, and ships burn petroleum, creating air pollution and releasing carbon dioxide that warms our climate.
Important! Human activities have three major environmental consequences: ozone layer depletion (letting in harmful UV rays), global warming (causing extreme weather), and species extinction (from hunting, pollution, and habitat loss).
These environmental problems aren't just about plants and animals—they affect our lives too, through changes in weather patterns, food production, and even the air we breathe.
We thought you’d never ask...
What is the Knowunity AI companion?
Our AI companion is specifically built for the needs of students. Based on the millions of content pieces we have on the platform we can provide truly meaningful and relevant answers to students. But its not only about answers, the companion is even more about guiding students through their daily learning challenges, with personalised study plans, quizzes or content pieces in the chat and 100% personalisation based on the students skills and developments.
Where can I download the Knowunity app?
You can download the app in the Google Play Store and in the Apple App Store.
Is Knowunity really free of charge?
That's right! Enjoy free access to study content, connect with fellow students, and get instant help – all at your fingertips.
Most popular content: Human Impacts on the Environment
5AP Human GeographyFull Year APHG (Human Geography) Notes
My full Freshman year’s APHG notes compiled on a document.
9th1,915236
AP Environmental ScienceAPES Final Notes
Notes of the high weighted units of APES. Watch Jordan Smedes' videos on youtube and use these notes to review for the AP test.
1,096120
AP Environmental ScienceAPES UNIT 1
Unit 1 APES notes
11th661
AP Environmental ScienceAPES Sustainability, Biomes, Evolution Review Notes
Chapter 1, 2, 4, 5, 6 Notes REVIEWED
38010
Earth and Space ScienceHuman Impact on the Earth: Effects of Environmental Change on Biodiversity
Very interesting and full of info presentation about human impact on our planet and the biodiversity among the animal species
390
Most popular content in Earth and Space Science
9P
Earth and Space Scienceplate tectonics
This quiz can help you study for simple plate tectonics tests.
6th2180
O
Earth and Space ScienceOur Solar System, and Beyond
Just a quiz on space science to get to know a little more
6th1600
E
Earth and Space ScienceEarth systems
How much do you know about you earth systems?
6th2210
S
Earth and Space ScienceScience
Use this to jog your memory
6th2230
W
Earth and Space ScienceWorld Oceans - Sixth Grade
Can you guess all the oceans? This will test your knowledge on the location of each ocean, describing bordering countries, seas, lands, and other oceans.
6th1390
Earth and Space ScienceEvidences of Plate Tectonics
This tackles the continental drift theory and the Evidences for continental drift theory.
99821
Earth and Space ScienceAtmospheric Layers and Their Characteristics
Learn about the distinct features and characteristics of the four main atmospheric layers: troposphere, stratosphere, mesosphere, and thermosphere.
6th642
Earth and Space ScienceEarth layer
Earth layer
953
Earth and Space SciencePhilsca EarthScience
For entrance exam review
12th912
Most popular content
9O
AP US HistoryOrigins and Dynamics of the Columbian Exchange
Analyze the ecological and economic motivations behind the initial transfer of goods, people, and diseases between the Old and New Worlds.
9th3,1280
I
AP US HistoryIntroduction to Early Cultural Interactions
Analyze the initial social and religious encounters between Europeans, Africans, and Indigenous peoples in the colonial Americas.
9th2,7730
O
AP World HistoryOrigins of Ancient River Civilizations
Analyze the environmental factors and technological innovations that led to the rise of early states in Mesopotamia, Egypt, and the Indus Valley.
9th3,1870
M
AP US HistoryMotivations for European Exploration
Analyze the economic, religious, and political factors that drove European powers to the Americas during the 15th and 16th centuries.
9th1,7780
F
AP PsychologyFoundations of Ethical Guidelines in Research
Practice the core principles of the APA ethical code including informed consent, debriefing, and the role of Institutional Review Boards.
9th1,3360
I
AP US HistoryIntroduction to Native American Societies
Examine the diverse social, political, and economic structures of North American indigenous groups prior to European contact.
9th1,1100
I
AP BiologyIntroduction to Biological Elements of Life
Practice identifying the essential elements including carbon, nitrogen, phosphorus, and sulfur that compose biological macromolecules.
9th1,7390
I
AP US HistoryIntroduction to the Spanish Encomienda System
Explore the fundamental economic and social structures of the Spanish colonial system, focusing on the encomienda and the casta social hierarchy.
9th8890
O
AP World HistoryOrigins and Continuity of the Byzantine Empire
Analyze the political and cultural transitions from the Roman Empire to the Byzantine Empire, focusing on the reign of Justinian I and his code.
9th1,6320
Can't find what you're looking for? Explore other subjects.
Students love us — and so will you.
4.6/5App Store
4.7/5Google Play
The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.
Stefan SiOS user
This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.
Samantha KlichAndroid user
Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.
AnnaiOS user