“Tree-ring evidence, allowing reconstructions of the levels precipitation, indicate that the worst drought to afflict North America in the past 500 years also occurred in the mid-16th century, when severe drought extended at times from Mexico to the boreal forest and from the Pacific to Atlantic coasts.”
That must be a lie!!! There were no gus-gussling CO2 belching SUVs criss-crossing the moutains, plans, valleys or rivers of North American and Mexico at the time!!!; ergo - impossible for such a drouhgt to occur, such things ONLY can happen when human’s cause them to!!!!!! LOL
The tree record now extends back about 10,000 years in the past. They have detected some serious worldwide events in our past.