NASA’s National Oceanic and Atmospheric Administration (NOAA) recently published the records of temperature for last 400 months which is more than 33 years where the Earth’s temperature has been above average. Earth has reached a milestone in terms of temperature difference which was reflected in the April edition of monthly global climate report by NOAA. The report states that the month of April 2018 had been the third-highest temperatures of any April ever since NOAA stated collecting the temperature related data in 1880.
Although there are several reasons behind massive climate change leading to increases in global temperatures some still believe that the climate change is due to anthropogenic reasons i.e. human-caused. But then again, there are natural reasons behind warmer years such as the warming effects played by El Nino and La Nino which plays a huge impact on global average temperature. Further, the report states that the year 2016 marks as the warmest year in the record due to strong El Nino system. Note that El Nino system involves warming of central and eastern tropical Pacific while La Nina system is the opposite of El Nino.
Another natural cause that results in a difference in global temperature is volcanic eruption where the global temperatures dip below the average since the ashes blocks some of the solar radiation emanating from the sun. Note that the difference in temperature s discussed in this extract is the result of comparing the average temperature of 21st century compared to 1900 and 2000. The report also states that out of the total 19 warmest years, 18 have occurred post-2000. NOAA has stressed on other reasons than natural factors affecting the global temperature to this extent.