MIAMI, UNITED STATES: Last year, the Earth
sweltered under the hottest temperatures in modern times for the third year in
a row, US scientists said Wednesday, raising new concerns about the quickening
pace of climate change. Temperatures spiked to new national highs in parts of
India, Kuwait and Iran, while sea ice melted faster than ever in the fragile
Arctic, said the report by the National Oceanic and Atmospheric Administration.
Taking a global average of the land and sea surface
temperatures for the entire year, NOAA found the data for "2016 was the
highest since record keeping began in 1880," said the announcement. A
separate analysis by the US space agency NASA also found that 2016 was the
hottest on record.
The global average temperature last year was 1.69 Fahrenheit (0.94 Celsius) above the 20th century average, and 0.07 degrees F (0.04 C) warmer than in 2015, the last record-setting year. Upward trend Each of the first eight months of the year "had record high temperatures for their respective months," NOAA said. The main reason for the rise is the burning of fossil fuels like oil and gas, which send carbon dioxide, methane and other pollutants known as greenhouse gasses into the atmosphere and warm the planet. The mounting toll of industrialization on the Earth's natural balance is increasingly apparent in the record books. "Since the start of the 21st century, the annual global temperature record has been broken five times (2005, 2010, 2014, 2015 and 2016)," said NOAA. Another factor has been the Pacific Ocean warming trend of El Nino, which experts say exacerbates the planet's already rising warmth. El Nino comes and goes. The latest episode became particularly strong in 2015, and subsided about halfway through 2016. But El Nino was responsible for just a small fraction of last year's warmth, according to Peter Stott, acting director of Britain's Met Office Hadley Center. "The main contributor to warming over the last 150 years is human influence on climate from increasing greenhouse gases in the atmosphere," he said. iers Forster, director of the Priestley International Center for Climate at the University of Leeds, agreed. Even if you remove the extra warming due to El Nino, 2016 was the warmest year ever recorded," Forster said. "2017 will likely be cooler. However, unless we have a major volcanic eruption, I expect the record to be broken again within a few years." |
Scenes from a warming world
All of North America was the warmest since records began in 1910, breaking that
region's last record set in 1998.
Europe and Asia each saw their third hottest years on record, while Australia
marked its fourth warmest year since records began more than a century ago. Unusual
spikes in temperature were seen in Phalodi, India, which reached 124 F (51 C)
on May 19 -- marking India's hottest temperature ever. Dehloran, Iran hit 127 F
(53 C) on July 22, a new national record. Meanwhile, Mitribah, Kuwait hit an
all-time high of 129 F (54 C) on July 21, which may be the highest temperature
ever recorded in all of Asia, NOAA said.
Planet-wide, the heat led to more melting at the poles. In the Arctic, average
annual sea ice extent was approximately 3.92 million square miles (10.2 million
square kilometers), the smallest annual average in the record, NOAA said. "In
the Antarctic, annual Antarctic sea ice extent was the second smallest on
record, behind 1986, at 4.31 million square miles," it said. "Both the November and December 2016
extents were record small."
Dangers
Unusually hot years wreak havoc on the planet by increasing heavy rainfall in
some parts of the world while leading to drought in others, damaging crops. Fish
and birds must migrate farther than ever to find suitable temperatures. Diseases
can spread faster in the warming oceans, sickening marine life and killing
corals. Glaciers and polar ice caps melt, leading to sea level rise that will
eventually swallow many of the globe's coastal communities, home to some one
billion people. Experts say the only solution is to reduce our dependence on
fossil fuels, in favor of Earth-friendly renewable energy such as wind and
solar. "Climate change is one of
the great challenges of the twenty first century and shows no signs of slowing
down," said Mark Maslin, professor of climatology at University College
London.
"The decarbonization of the global economy is the ultimate goal to prevent
the worst effects of climate change."
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