[FroshKiller]

This isn't the first time you've posted this. Here is the response I decided not to post last time.

You will probably never write a magic thousand lines of code for this. You'll probably have a far greater impact if you do a few simple things we should all be doing anyway:

* Turn off lights you aren't using.

* Turn your air conditioning up or down by a few degrees.

* Turn your water heater down a few degrees.

For computer-specific stuff:

* Don't leave computers running when not in use.

* Dim your displays.

* Use your laptop's battery rather than leaving it plugged in all the time.

I know it's not exactly interesting stuff, and it certainly doesn't build your CV, but neither of those things is actually important when it comes to climate change.

[KitDuncan]

You forgot the most impactful change you can make: Stop eating meat and stop consuming animal products.

It's easy and you can start right away. You are reducing your carbon footprint by probably 10 times the amount, of all the other suggestions you listed combined.

[danieltillett]

I think you need to be aware of Jevon's paradox [1].

The only thing that is going to do anything about climate collapse (climate change is too wishy-washy for such a serious topic) is leaving the carbon in the ground or pulling it out of the air.

1. https://en.wikipedia.org/wiki/Jevons_paradox

[TheSpiceIsLife]

Turn your water heater down a few degrees.

If I turn my water heater down I'll need to turn the hot tap on more when I have a shower, thereby using more not-so-heated water, resulting about the same amount of energy used.

Use your laptop's battery rather than leaving it plugged in all the time.

This one also doesn't work, because charging and discharging a battery results in energy lost as heat. Rechargeable batteries aren't 100% efficient.

And dimming your displays? I wouldn't worry about that, the handful of watt-hours I'd save a year doing that is grossly undone by forgetting something at the supermarket and driving back to get it.

Cycle or walk more, catch the bus / train / tram once a week, and as others have pointed out reduce consumption of animal products.