Climate crisis: last seven years the hottest on record, 2021 data shows

Global heating continued unabated with extreme weather rife and greenhouse gases hitting new highs The last seven years were the world’s hottest on record, with the first analysis of global temperature in 2021 showing it was 1.2C above pre-industrial levels. The assessment of the year, by the European climate agency Copernicus, also found carbon dioxideContinue reading “Climate crisis: last seven years the hottest on record, 2021 data shows”

Growth, Cities, and Immigration: Crash Course US History #25

In which John Green teaches you about the massive immigration to the United States during the late 19th and early 20th century. Immigrants flocked to the US from all over the world in this time period. Millions of Europeans moved to the US where they drove the growth of cities and manned the rapid industrializationContinue reading “Growth, Cities, and Immigration: Crash Course US History #25”

The Industrial Economy: Crash Course US History #23

In which John Green teaches you about the Industrial Economy that arose in the United States after the Civil War. You know how when you’re studying history, and you’re reading along and everything seems safely in the past, and then BOOM you think, “Man, this suddenly seems very modern.” For me, that moment in USContinue reading “The Industrial Economy: Crash Course US History #23”

Migrations and Intensification: Crash Course Big History #7

In which Hank and John Green teach you about humanity conquering the Earth. Or at least moving from Africa into the rest of the Earth. As human beings spread out across the world and populations grew, humanity reached a critical mass of innovators, and collective learning took off! All these innovations were great for lotsContinue reading “Migrations and Intensification: Crash Course Big History #7”

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