Scientists have already determined and measured the effects of climate change and extreme weather like drought and heavy rainfall however other extreme weather events like tornadoes, hurricanes and even wildfires are not yet clearly linked with global warming, according to this new research. 

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This new report from the National Academies of Sciences, Engineering and Medicine reveals a significant number of factors that are driving these weather events from normal variations to atmospheric circulations.

According to the prestigious group that is supported by the U.S. Congress to conduct studies for the federal government, these types of extreme weather events are even more difficult to understand and explain since data is rare and rather limited.

According to head of the committee, David Titley from the Pennsylvania State University, climate experts are constantly bombarded with questions linking extreme weather events and rising global temperatures caused by man made greenhouse gas emissions.

Titley adds how it is challenging to answer these questions since all these factors are linked to an individual weather event however, this also means that there is now more evidence of how climate change affects the intensity and the chances of some event occurring.

In recent years, more questions surface about about climate change becoming a factor for devastating and disastrous events such as Hurricane Sandy that battered the northeast regions of the Unites States last 2012, along with heavy floods that ravaged South Carolina and the U.K. last year, including an intense heatwave in South Asia last summer where thousands of people perished.

The report also says that scientists are more likely to link man made warming to extreme weather such as heatwaves and cold snaps since these events are backed by historical data that can generate models and simulations easily.

Apart from this, weather events that are followed by extreme drought and heavy rains are determined to be all influenced by atmospheric moisture that is caused by climate change, however, wildfires are more often than not, caused by factors like forest management and variables in climate.

The report concludes that severe thunderstorms, tornadoes and hurricanes all possess the weakest evidence to global warming especially when these events occur in tropical regions, due to lack of data, that can be difficult to generate simulations and models for predictions.