As you can see below on the graph of annual global temperatures (relative to the 20th century average global temp) from 1880 to 2016, there is an unmistakable upward trend in temperature, with a notable acceleration since 1970.
Using independent methods, NASA found that globally-averaged surface temperatures in 2016 were 0.99 degrees Celsius, or 1.78 degrees Fahrenheit, warmer than the mid-20th century average.
The Columbus Dispatch reported that NASA's findings, which included data from the Arctic region, showed the average global temperature in 2016 was 0.22 degrees Fahrenheit (0.12 Celsius) warmer than it was in 2015.
Earth sizzled to a third-straight record hot year in 2016, government scientists said Wednesday.
We found out this week that 2016 was the hottest year ever recorded, further supporting the consensus that the Earth is getting gradually warmer due to human activity. While now all three US temperature records show this past year as the hottest, researchers disagree on its significance. For the USA, 2016 was the second warmest year on record. They said last year passed 2015 as the hottest year on record. Most of this warming trend throughout the world has taken place in the last 35 years, the USA space agency said.
Global Heat Beats Records for Third Successive Year
While July held the hottest day of the year reaching 101 on the 28th, it was not a record setter.
It is the third consecutive year of record-breaking heat, a first in the modern era.
Across Earth too, there was not a single land area that enjoyed lower-than-average temperatures previous year, warned NOAA. We tend to record global temperature spikes when we have seasons with a strong El Niño, with 1998 being an example.
"It's very, very hard to understand, if it wasn't the culprit, why somebody left carbon dioxide's fingerprints all over the crime scene", Gavin Schmidt, director of NASA's Goddard Institute for Space Studies in New York City told BuzzFeed News. But the announcement cemented for many researchers the worrying reality that global temperatures are continuing their inexorable upward climb.
"The main contributor to warming over the last 150 years is human influence on climate from increasing greenhouse gases in the atmosphere", he said.
The annual Antarctic sea ice extent was the second smallest on record, behind 1986, at 4.31 million square miles.
NASA, NOAA confirm 2016 was Earth's hottest year on record
NOAA said 2016's warmth took off with a boost from El Niño, with the planet setting monthly heat records from January to August. NOAA calculated that last year was the warmest year on record in the oceans, the Arctic and North America.