fig, ax = plt.subplots()
# Add data: "co2" on x-axis, "relative_temp" on y-axis
ax.scatter(data["co2"], data["relative_temp"])
# Set the x-axis label to "CO2 (ppm)"
ax.set_xlabel("CO2 (ppm)")
# Set the y-axis label to "Relative temperature (C)"
ax.set_ylabel("Relative temperature (C)")
plt.show()