Australia is experiencing constant natural disasters: The forest fires have just been extinguished and are now facing the threat of floods. Why are there so many extreme weather conditions?
Australian natural disasters
Australia's "New Daily" reported on the same day that most of the Australian Pass wildfires were affected by rainfall and were extinguished. The local fire department has reduced the threat level of wildfires. But unexpectedly, devastating storms will sweep through the Southwest, bringing the threat of flooding.
According to reports, the fire in Australia burned at least 86 houses and affected about 11,000 hectares of land. The fire caused serious damage to the local power infrastructure, and about 300 houses are still without power. Relevant sources said that the fire is currently under control, some roads have been reopened, and some residents are allowed to return to their dormitories.
A spell of rain helped put out the fires, but the Australian Bureau of Meteorology predicted severe weather would cause flooding. Devastating storms are set to hit the state's southwest as a severe low pressure cyclone sweeps across Western Australia. The wind speed can exceed 100 kilometers per hour, and the rainfall can reach 100 millimeters. The Midwest Gas Commune and Pars will be the first to be affected by the severe weather.
Gascoyne suffered a once-in-ten-year flood. Aerial footage showed parts of the area completely submerged in water, with only the tops of trees and buildings visible. According to Western Australia Governor Mark McGowan, some areas had been blocked for five days due to the COVID-19 epidemic and the Pass bushfire. After a difficult week, extreme weather has occurred here again.
Months of forest fires in Australia have destroyed forests in the southeastern part of the country, leaving nearly 3 billion animals dead or homeless. But the disaster could go far beyond that. The Royal Australian Forest Fire Response Committee has released an interim investigation report, warning local governments to prepare for more frequent and severe natural disasters in the next few years, calling for coordination between different levels of government, and Updating forest fire warning systems is set as a priority.
Why do extreme weather occur frequently? ?
Extreme weather and climate events have brought huge losses of life and property to humans. Especially in recent years, extreme weather and climate events have become more frequent and intense, which has made scientists very worried. . So, what are the reasons for the frequent occurrence of extreme weather and climate events? Scientists believe that this is due to increased greenhouse gas concentrations, global warming, the El Niño phenomenon, the dynamic movement of the earth itself, human intervention in nature, changes in solar radiation, and earth orbit deviations It is the result of the simultaneous action of internal and external factors.
Scientists also believe that the earth has a natural feedback mechanism to climate change, which can amplify or reduce external positive and negative forces to maintain the stability of the earth's climate system. Without such a mechanism, the climate system could go to extremes, either too hot or too cold. However, if external pressure is too great, it may cause the climate system to collapse, so catastrophic extreme weather and climate events will occur frequently.