Use this guide to replace the CPU cooler. The CPU cooling fan is very important as it cools down the computer; preventing it from overheating and causing it to slow down. Replacing it will help your CPU to have a longer life time and reduce e-waste.
Conclusion
By replacing the CPU cooler the lifespan of the computer will be lengthen with the small upgrade. By replacing certain parts within a computer it would no longer be necessary to buy a new computer and increase e-waste. By lowering the amount of e-waste it would help the environment.