How is the tech industry contributing to global warming and what can we do to reduce the impact?

As members of the tech industry we should be aware of how we are contributing to global warming. More then that we should talk about what we can do to reduce the impact.

For example the boom of cryptocurrency has been contributing to global warming by increased use of electricity to mine and probably wasn't the best contribution of the tech world. What are other issues that we have created or contribute to? Of course, then there is also node_modules.

Let us discuss to increase awareness