Here are some of my favourite websites for carbon cutting advice.
Consistently, the highest impact points are: go vegan, travel by foot/bike only and (most controversially), have fewer kids. Well, whatever works for you, be sure to read the advice and make an informed decision. S
https://www.carbonfootprint.com/minimisecfp.html
25+ Ways to Reduce Your Carbon Footprint
https://www.wwf.org.uk/what-we-do/projects/reducing-carbon-emissions-uk
50 Ideas for shrinking your carbon footprint