It comes as no surprise that extreme weather is our own fault. Scientists have been talking so much about global warming, that it seems the explanation was already there for those hot days followed by heavy rain. This time it was stated in black and white in a recent study that makes the connection between our actions’ effect on the climate and three quarters of the hot days we have to endure.
This 75 % of hot days for which global warming is responsible could increase to 95 %, should we continue to release greenhouse gases – mainly carbon dioxide that comes from burning coal and oil into the atmosphere. This information was reported in a study published in the journal Nature Climate Change on Monday by climate scientists from a Swiss university.
However, it has been discovered that man’s effect on heavy rain is smaller, causing up to 18 % of extreme downpours. Nevertheless, if global warming increases by 1.1 degrees Celsius, that percentage will be doubled, leading to about 39 % of rainfall to be connected to people’s harmful influence on the planet. This is expected to happen around the year 2050.
The lead author of the study, Erich Fischer from ETH Zurich and his colleague Reto Knutti analyzed the hottest day, with 25 different computer models. A world where there were no greenhouse gas emissions released by humans into the atmosphere was simulated on the computers. Their conclusion was that such a hot day would only occur once every three years. Afterwards, they determined how many times such a day would come up in our world, with the present level of gas emission. The number of days increased to four. When they increased the simulated level of greenhouse gases – using the pollution means that are commonly employed, they reached 26 extremely hot days by mid-century. These numbers represent estimates and they are likely to slightly change if parameters are altered (for example, if smaller areas are considered). The scientists also indicated that different regions of the world have significantly higher percentages of extremely hot days that are to be blamed on human activity . Among them, Africa has the highest one (89%), followed by South America (88%), North America (67%) and Europe (63%). All these percentages could increase to 93 % if greenhouse gases are issued at the same pace.
This study is particularly important because not only it can help predict what turn the weather will take, but it can also help us determine how we can adjust our activity as to prevent the acceleration of such extreme weather. The natural factors are still of great importance in climate change, but the most important question we should ask ourselves is how much we are responsible for such dramatic alterations concerning weather.
Image Source: Therayatpost
Latest posts by Anne-Marie Jackson (see all)
- SF Hospital Slaps New Parents with $19K Bill for Baby Treatment - Mar 14, 2019
- Furious Trump Blasts Harley-Davidson for Moving Production Overseas - Mar 14, 2019
- Warning! MRI Machines Could Poison You - Mar 14, 2019