As there is very little co2 in the earths atmosphere I don’t get all the push on reduction? If the climate is changing it can’t be down to co2. It is estimated that co2 accounts for 0.04% of the earths atmosphere.
From National Geographic:
Earth’s atmosphere is composed of about 78 percent nitrogen, 21 percent oxygen, 0.9 percent argon, and 0.1 percent other gases. Trace amounts of carbon dioxide, methane, water vapor, and neon are some of the other gases that make up the remaining 0.1 percent.
Here: https://www.nationalgeographic.org/encyclopedia/atmosphere/