小冰期是全球性科学问题啊。
老外的研究结果。
老外还研究北极冰盖冰芯来看北极冰盖范围变化。

这是个大话题，全球变暖，climate change.....


https://scripps.ucsd.edu/news/2913
The period between 1400 and 1850 was marked by an average temperature drop of just less than 1 degree C (1.8 degrees F), but not just in the Northern Hemisphere.
The team found that temperatures fell an average of 0.52 degrees C (0.94 degrees F) between 1400 and 1800.

http://www.meteo.psu.edu/holocene/public_html/shared/articles/littleiceage.pdf
the period 1400–1900 appears to have been moderately
cooler (approximately 0.3 °C) than the earlier period AD
1000–1400 and about 0.8 °C colder than the late 20th
century


【 在 linuxyin (实现自我) 的大作中提到: 】
: 你这全球平均温度下降0.8度怎么得出来的？
: 就是说，当初主要问题还是大明自身的财政政策出现了问题，没有实行财政转移支付政策，东部沿海省份没有有效支援中西部欠发达地区？
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FROM 139.159.150.*