Things were slightly cooler 1920s &30s as soot increased in the air, true warming began in the 1980s and has really taken off over the last 25 years. For refere

Things were slightly cooler 1920s &30s as soot increased in the air, true warming began in the 1980s and has really taken off over the last 25 years. For reference we haven't béen above 380 ppm of CO2 in 100s of thousands of years. Last time the Earth was above 420 ppm (we are now over 425 ppm), global average temperature was 20 degrees hotter. Things are going to get crazy next few years. It won't be a slight warming, it will be devastating to our food supplies.