A look at temperature differences across the globe.

(World Meteorological Organization)

At a Glance

A recent detailed analysis looked at the link between global warming and extreme weather events.The analysis was conducted by the World Meteorological Organization.

A detailed analysis of the global climate between 2011 and 2015 by the World Meteorological Organization indicates that extreme weather is "increasingly linked to global warming."

According to a WMO press release, revealed that the five-year period studied was the hottest on record, and with those high temperatures came a corresponding rise in sea levels and a decline in the extent of Arctic sea ice and northern hemisphere snow cover, as well as extreme weather events.

The report, which was submitted to the U.N. climate change conference, said indicators "confirmed the long-term warming trend caused by greenhouse gasses" and noted that carbon dioxide reached the "significant milestone of 400 parts per million in the atmosphere for the first time in 2015."

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Of 79 studies published by the Bulletin of the American Meteorological Society between 2011 and 2014, more than half indicated that human-induced climate change was directly linked to individual extreme weather events, the report notes.

Extreme weather events and the link between the event and human-induced climate change.

(World Meteorological Organization)

"The Paris Agreement aims at limiting the global temperature increase to well below 2 degrees Celsius and pursuing efforts towards 1.5 degree Celsius above pre-industrial levels. This report confirms that the average temperature in 2015 had already reached the 1 degree Celcius mark. We just had the hottest five-year period on record, with 2015 claiming the title of the hottest individual year. Even that record is likely to be beaten in 2016," said WMO Secretary-General Petteri Taalas.

"The effects of climate change have been consistently visible on the global scale since the 1980s: rising global temperature, both over land and in the ocean; sea-level rise; and the widespread melting of ice. It has increased the risks of extreme events such as heatwaves, drought, record rainfall and damaging floods,"Taalasadded.

Some of the extreme weather events cited in the report include the East African drought in 2010-12, which caused an estimated 258,000 deaths; flooding in Southeast Asia in 2011, which killed 800 people and caused more than $40 billion in economic losses; heat waves in India and Pakistan in 2015, which claimed more than 4,100 lives; Hurricane Sandy in 2012 which caused $67 billion in economic losses; and the 2013 Typhoon Haiyan, which killed 7,800 people in the Philippines.

The report noted that the average sea-surface temperatures were highest on record in 2015, while all five continents were substantially warmer. 2015 was also the first year in which global temperatures exceeded 1.8 degrees Fahrenheit above the pre-industrial era.

An aerial view shows signs for help amid the destruction left from Typhoon Haiyan, one of the extreme weather events cited in the study, in the coastal town of Tanawan, central Philippines, Wednesday, Nov. 13, 2013.

(AP Photo/Wally Santana)

As oceans warm, they expand, which results in a rise in global and regional sea levels. According to the report, about 40 percent of the observed global sea level increases over the past 60 years can be attributed to increased ocean heat, a direct result of global warming.

While extreme high temperatures could be attributed to "human-induced (anthropogenic) climate change," no clear evidence was found to link extreme precipitation events to human-induced climate change in most cases.

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The report notes that some drought impacts have been heightened in some areas by an increase in population, which creates a greater demand for water. A drought in southeast Brazil in 2014 had a greater impact than those experienced during previous droughts in the same area. According to the report, the same amount of rain that fell in the affected area in 2014 fell on the area on three separate occasions since 1940. However, the impacts were not as great because there were fewer people needing water.

The World Meteorological Organization is the United Nations System’s authoritative voice on weather, climate and water.

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