Where do they get the ancient ‘data’ from? Tree rings, ice cores?
Not from ice cores, because ice cores actually show that warming happens FIRST while co2 rises after 800 years of warming, which disproves their claim that co2 drives warming. So they ignore ice core samples, or try to falsely explain the gap away.
Also, many tree ring records fail to show any warming signs since the 50’s
Teee rings from very long growing trees are also unreliable for various reasons
Science is not the climate alarmists best friend. It refutes everything they claim
Google.
ice cores