Ecodriving is very good and also saves you both money and emissions.
Climate Speed is in a way both a simplified and extended form of Ecodriving.
It is simplified – driving in Climate Speed will give you a substantially lower fuel consumtion, without knowing much about Ecodriving.
It is extended – if you use Ecodriving skills and combine them with Climate Speed, it will maximize your eco-effectiveness.
So what is Ecodriving? There are many educational programs all over the world about eco-driving. Just google it! Here are a few links to begin with.