the earth has been becoming more cold and having less sunlight in the last thousands of years:
"We know for sure that the earth became cooler: the evidence can be found through a variety of techniques for assessing historical temperatures, such as the study of ice cores and tree rings. There are also extensive written accounts of the cold in the form of letters and diaries, sermons, the records of wine growers, and so on. The cooling happened in phases, with an initial drop beginning around 1300, and a sharper and more abrupt onset of cold starting in 1570 and lasting for about a hundred and ten years."
www.newyorker.com
7 days ago vox published this article:
"Fast-forward to today: The ozone is on the path to recovery, if not fully restored. A report released by the UN on January 9 found that the ozone layer is on track to recover within four decades. Thanks to the most effective international environmental treaty ever implemented, nearly 99 percent of banned ozone-depleting chemicals like CFCs have been successfully phased out. Should those policies remain in place, the report finds that the ozone layer is projected to return to its 1980 levels by 2040 as a global average, with thinner Arctic ozone recovering by 2045 and Antarctic ozone — the area where scientists first discovered a hole — recovering by 2066."
www.vox.com
"We know for sure that the earth became cooler: the evidence can be found through a variety of techniques for assessing historical temperatures, such as the study of ice cores and tree rings. There are also extensive written accounts of the cold in the form of letters and diaries, sermons, the records of wine growers, and so on. The cooling happened in phases, with an initial drop beginning around 1300, and a sharper and more abrupt onset of cold starting in 1570 and lasting for about a hundred and ten years."
How the Little Ice Age Changed History
Starting in the fourteenth century, cooling temperatures disrupted our economic and social structures—and may have given rise to the modern world.
7 days ago vox published this article:
"Fast-forward to today: The ozone is on the path to recovery, if not fully restored. A report released by the UN on January 9 found that the ozone layer is on track to recover within four decades. Thanks to the most effective international environmental treaty ever implemented, nearly 99 percent of banned ozone-depleting chemicals like CFCs have been successfully phased out. Should those policies remain in place, the report finds that the ozone layer is projected to return to its 1980 levels by 2040 as a global average, with thinner Arctic ozone recovering by 2045 and Antarctic ozone — the area where scientists first discovered a hole — recovering by 2066."
The ozone hole shrank last year. Here’s how the world solved an environmental crisis.
New UN data shows that 99 percent of ozone-destroying chemicals have been phased out, underscoring a hopeful environmental story.
www.vox.com
