CO2 levels in Earth’s atmosphere hit a record high 415 ppm. That’s more CO2 than any level previously measured in Antarctic ice core samples. Of course this record isn’t very surprising because every year CO2 levels keep rising exponentially so it’s virtually always a new record high. Read more. Meanwhile in northwest Russia the temperature hit 84 degrees Fahrenheit (29 Celsius), where the average high this time of year is 54 degrees Fahrenheit. Read more