This chart doesn't look right. The it went from 280 in the 1700s to not even 500 now (not even a double) yet the chart looks like there was an astronomical spik

This chart doesn't look right. The it went from 280 in the 1700s to not even 500 now (not even a double) yet the chart looks like there was an astronomical spike. With dishonest exaggeration like this, who needs climate change deniers.