"Nai rosh nai, darun dahanbela. / Khelo khelo tobo nirab bhairab khela" Rabindranath Tagore wrote in one of his song. He wrote this song during the scorching heatwave of Chaitra, the bangla month. But the nature is so changeable that now we can see that Bhairab play even in the month of Shrabon.
It is monsoon, along with heat. The sky is blue or at times it's cloudy like autumn! It was raining yesterday, after many days. There has been no rain in the districts of Bangladesh except Sylhet, Chittagong and Chittagong Hill Tracts since July 5. The question may arise in the mind - why is the sky free of clouds and rain in this monsoon season?
There is an exceptional or unusual heat wave over Bangladesh and central and northeastern India. Why this heat wave? Scientists have replied that climate change cause heat wave. Climate change is one of the biggest challenges of our times. Parts of Europe and Africa are burning. Heat causes wildfire in Europe. The maximum temperature record is breaking one after another.
Firefighters are facing with heat waves. From the beginning of this year to mid-June, 98,000 acres of forest in Portugal have been destroyed by wildfires—almost three times more than last year.
Wildfire spread across Europe. Firefighters are struggling to contain wildfires in France, Spain, Portugal, Greece, Croatia and Morocco. More than 1,000 people have died in recent fires in Portugal and Spain. Temperature records were broken across France on Monday as the searing heatwave continues. It is seen that the fire is gradually spreading from Southern Europe towards Northern Europe. Britain is on high alert with temperature likely to breach 40 degrees Celsius for the first time.
In addition to Greece, Morocco, fires have also spread in Croatia and Hungary this week. The World Meteorological Organization (WMO) has warned that the worst is yet to come. Wildfires are becoming more regular, intense and long-lasting due to human-induced climate change. In this regard, a WMO official said that such fires are becoming normal in the future and we are facing more extreme conditions. Scientists have already found evidence that the exact same number of heat waves that were flowing over any part of the Earth 30 years ago during the summer each year have been flowing in recent years.
For every degree rise in temperature, the rate of heavy rainfall increases by 7 percent. Along with that, the rate of strong cyclones increases. On the other hand, if the global temperature increases by another 2 degrees Celsius, severe droughts will occur once every decade, and most of the land will dry up and lose fertility four times. All conscious people around the world agree that the harmful effects of human activities on the environment are a 'red signal' for human society. Sadly, greenhouse gas emissions that have occurred in the past and will occur in the future are causing climate change that is unstoppable.
The effect will be seen on the Earth's oceans, frozen ice sheets and sea water levels for several centuries or millennia. We have only one world. Since there is no Planet-B, there is no alternative to Plan-B. So if we can reduce greenhouse gas emissions like carbon dioxide and methane on a large scale, the increase in temperature may be brought to a moderate level. It was difficult, as this danger is for everyone, it will also have to be handled collectively.