Scientific evidence about the rising of average global temperatures seems to be piling up.
According to the Japan Meteorological Agency, average global temperatures in April, May and June this year were the highest since the beginning of official records, in 1891.
The Japanese records, released on Monday, show that this year’s second quarter was about 0.68 degrees Celsius warmer than the average for the whole 20th century.
U.S. space agency NASA uses different method for calculating average temperature, but its records, released Monday, show almost identical results.
In addition, the U.S. Oceanic and Atmospheric Administration’s Mauna Loa Observatory reports that the monthly average of carbon dioxide levels in the earth’s atmosphere reached 400 parts per million, the highest in the last 800,000 years.