Sentences with phrase «activity early last century»

There are literally hundreds of studies, reconstructions, research papers and graphs of solar cycles, and the vast majority show an increase in solar activity early last century, and a flat cycle after about 1970.

Not exact matches

I personally think solar activity volcanic activity and CO2 were all clearly very significant, and about equally significant early last century.

It doesn't change the fact that lack of volcanic activity contributed to warming early last century, because warming is only what a thermometer measures, and this volcanic activity thing is the thing you are denying.

You aren't thinking about the warming period early last century, because we know it was a relatively brief period, and so lacked huge significance, and was caused by a combination of CO2 emissions, high solar activity and low volcanic activity and the later two factors haven't been apparent since the 1970's modern warming period.