Money saving and self-interest appeals may be useful in some circumstances. For example, reducing energy usage can save you money and cycling more can make you healthier. However, it is dangerous to rely solely on these aspects since some of the deeper changes may actually carry a cost and may not be beneficial to us. For example, fully retrofitting your house will cost money (although it should pay back over a period of time) and you would probably perceive cutting out your annual holiday to the Maldives as a sacrifice.
As mentioned, there is a time and place for money saving and self-interest appeal, but remember to also link it to values such as “equity and fairness” (the developed world created the problem but the developing world is most affected- therefore it is our responsibility to act) and “acting on climate change is the right thing to do”.
