Since the beginning of this year, extreme weather and climate events such as heavy rainfall, floods, heat waves and droughts have occurred frequently in many places around the world, causing huge economic losses. Experts from the World Meteorological Organization said on June 28 that such events have become the norm, and climate change caused by greenhouse gas emissions is the main cause.
Silva, a climate expert at the World Meteorological Organization, said on the 28th that in recent decades, the frequency and intensity of extreme weather events such as heat waves and heavy precipitation have increased. Heatwaves in Asia, Africa, Europe and North America have taken a heavy toll so far this year, posing a major threat to human health and well-being. According to Silva's analysis, a variety of climate factors, such as El Niño and La Niña, may contribute to extreme weather and climate events at different time and space scales, but climate change caused by human activities is the main cause, which is also the long-term background for the increasing frequency and severity of extreme weather and climate events.
May was the hottest on record
Driven by factors such as El Niño and climate change due to greenhouse gas emissions, record high temperatures have lasted longer. According to a recent report released by the Copernicus Climate Change Service, the European Union's climate monitoring agency, May this year was the hottest May on record, and it was also the 12th consecutive month that the global average monthly temperature refreshed the highest value for the same period.
Temperatures will be above average in many parts of the world from July to September
Silva said that although the El Niño phenomenon that lasted from last year to this year is now over, the latest seasonal forecast released by the World Meteorological Organization shows above-average temperatures in Africa, Europe, most of Asia and much of North, Central and Caribbean, and South America from July to September, increasing the risk of heat waves and wildfires.
Most of the ocean surface temperatures will be high in the next six months
According to the quarterly forecast recently released by the Copernicus Climate Change Service, the surface temperature of most of the world's ocean regions will be above average in the next six months, with the exception of the equatorial Pacific Ocean and the Southern Ocean. This is related to the possible La Niña phenomenon later this year. Meteorologists say that during La Niña, changes in sea surface temperatures in the Pacific Ocean directly affect precipitation patterns across the tropics, which in turn affect temperatures, precipitation and wind direction on a global scale.
(Source: CCTV News Client)