No. Humans generate more CO2 in winter, not summer. That's what makes the Mauna Loa data so interesting: it suggests that CO2 is a thermometer, not a thermostat,We have been here before.
The M-L data probably looked fairly similar before mankind evolved, a cyclic seasonal variation in CO2.
The difference we have made is that it's now superimposed on a slope that's going up faster than ever before.
CO2 isn't a thermostat; nobody said it was.