Best Online Free Environmental Science Classes

Does the health, stability and wellbeing of nature and the planet in general capture your interest? Have you ever wondered what it might be like to work with wild animals or plants and help protect them from extinction? Then taking a course in Environmental Science would be a great choice.

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In a nutshell, environmental science (ES) is a fascinating, interdisciplinary field that explores the interactions between humans and the environment, along with the impact that these interactions cause. And thanks to the rise of online education, there are numerous opportunities nowadays to learn about ES and its immense importance right in the comforts of your home, or wherever you happen to be. This means that you no longer have to take a daily commute just to get to classes on campus, plus you’ll have time to juggle your other various goals and pursuits.

And the best part is, many of these courses are completely free of charge. All it requires is dedication and just a minimum amount of spare time per day dedicated to studying. Beyond that, studying and enriching your knowledge in this field is not only beneficial for humanity, but you can also consider yourself a hero for the planet as well.

Keep on reading to get a comprehensive outline of the seven best online free environmental science classes available, covering a range of topics that provide valuable knowledge and skills that are essential in the effort towards environmental conservation and sustainability.


This is one of the most well known education platforms of them all. It offers several free environmental science courses taught by top instructors from leading universities worldwide. You’ll find courses such as “Introduction to Environmental Science” and “Environmental Management and Sustainable Development” cover fundamental concepts, while also providing a broad overview of the subject. The lessons typically include video lectures, quizzes, and assignments to enhance understanding and engagement.


edX is another platform offering high-quality free environmental science classes, and some of them are a bit different from what you’d typically find on other platforms. For instance, you can check out “Introduction to Environmental Science” and “Sustainable Food Systems: A Mediterranean Perspective.” These are popular courses that delve into the various aspects of environmental science, including climate change, biodiversity, and sustainable agriculture.
As a cool added bonus, edX courses often feature interactive content and discussion forums to encourage peer learning and collaboration.

MIT OpenCourseWare

Believe it or not, you don’t have to be a certified genius or financially well off to study at MIT. ( Massachusetts Institute of Technology). This prestigious institute is now offering a program called OpenCourseWare, an initiative which provides free online access to their course materials.

Their collection includes classes such as “Environmental Science and Engineering,” which explores topics like air and water pollution, toxicology, and environmental risk assessment. Although it isn’t as interactive as some other platforms, MIT’s OpenCourseWare offers detailed lecture notes, assignments, and exams to facilitate self-paced learning.

Yale Open Courses

Yet another top notch option, Yale University offers a selection of open courses that might suit your fancy, including “Environmental Politics and Law,” “Introduction to Environmental Economics and Policy,” and “Forests and Global Change.” These courses provide in-depth analyses of environmental issues and policies from renowned experts in the field. Yale Open Courses include video lectures and reading materials, allowing learners to gain insights into the latest research and critical perspectives.

Khan Academy

When it comes to online learning for all ages, Khan Academy is hard to beat. It is a widely recognized online learning platform that covers a broad range of subjects, including environmental science. Their free environmental science courses cover topics like energy, ecosystems, and human impacts on the environment. Khan Academy’s engaging video lessons, practice exercises, and quizzes make it suitable for just about anyone.


If you’re looking for free online courses that cover fundamental and introductory knowledge to ES, then look no further than Alison. This learning platform offers a variety of free environmental science courses, such as “Introduction to Ecology” and “Sustainable Business – Managing the Triple Bottom Line.”
These courses provide a solid foundation in ecological principles and sustainable business practices, respectively. Plus, Alison’s courses are self-paced and include assessments to test understanding and knowledge retention.


OpenLearn, a platform by The Open University, may not be as well known as others, but is still worthy of recognition. It provides free environmental science courses for learners worldwide. This platform has classes like “The Environment: Challenges and Solutions” and “Environment: Sharing a Dynamic Planet” which cover topics such as climate change, biodiversity, and sustainable development. Better yet, OpenLearn often incorporates multimedia elements, interactive activities, and quizzes to further enhance the student’s learning experience.

Final Thoughts

As you can surely see, the availability of free online environmental science classes has made it easier than ever to gain knowledge and skills in this field. Whether you are a student, professional, or simply interested in environmental conservation, these free classes provide valuable insights and empower individuals to learn new skills, expand their knowledge and make a positive impact on the environment.

So, seize the opportunity to nourish your understanding of environmental science, so that you too can contribute towards a cleaner, healthier and more sustainable future for humanity and the entire planet.

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