The Himalayas have lost 40% of their glacial mass since the Little Ice Age. East Nepal and Bhutan have experienced the most rapid losses.
Paleoclimate databases are powerful tools for improving climate models. The recent work of speleothem researchers offers lessons on creating a lasting database and fostering the needed mindset.
None of the cold and warm epochs from the past 2,000 years were global events, but the current period of climate change is more intense and is happening simultaneously across the entire planet.
The loss of precontact agricultural communities to genocide and disease may have led to massive reforestation, a dip in carbon dioxide, and one of the coldest snaps of the Little Ice Age.
Measurements from a 19th century scientific expedition have revealed that the deep Pacific waters are cooling from lower global temperatures centuries ago.