International Desk: The temperature of Bangladesh has increased rapidly in the last three decades. The government research institute CEGIS analyzed the data of Meteorological Department and said that the winters are getting drier and the monsoons are getting wetter.
In the last three decades, the average temperature of Bangladesh has increased at a higher rate than the previous three decades. This information has been published in the Bangladesh National Adaptation Plan published on the occasion of the United Nations Climate Conference COP27.
According to the Center for Environmental and Geographic Information Services, or CEGIS, a government research organization, the average annual temperature rise from 1961 to 1990 was 0.0067 degrees Celsius. And from 1991 to 2019, the temperature has increased by 0.3 degrees Celsius every year. That is, compared to the previous three decades, the average temperature has increased about four and a half times in the last three decades.
According to CEGIS, the rate of temperature increase is increasing as time goes on. For example, over the past three decades, temperatures increased by 0.39°C from 1991 to 2000, by an average of 0.53°C from 2001 to 2010, and by an average of 1.06°C from 2011 to 2019.
The weather is changing
The minimum average temperatures in winter and monsoon have increased by 0.45°C and 0.52°C over the year respectively. That is, winters are gradually getting warmer.
the nature
At the same time the rainfall pattern is also changing. As such, the average rainfall across the country increased by an average of 8.4 mm. Annual rainfall is slightly reduced during winter i.e. December to February and pre-monsoon season i.e. March to May. On the other hand, there is an increase in rainfall during the monsoon and post-monsoon, i.e., from June to November. This means winters are getting drier and monsoons are getting wetter.
Which direction is the future?
Meanwhile, according to a report by the UN’s Intergovernmental Panel on Climate Change (IPCC), greenhouse gas emissions are expected to increase global temperatures by 1.5 degrees by 2030 since the start of the industrial age. And by the year 2050 it may increase from 1.7 degree to 2.4 degree Celsius. In the long term, i.e. by the end of the century, the temperature may increase by 1.8 degrees to 4.4 degrees Celsius. According to them, the temperature in Bangladesh could increase by 0.44°C to 0.69°C above the pre-industrial temperature by 2030. By 2050, it could increase from 1.3 degrees to 2 degrees.
What happens if the temperature rises?
According to the IPCC study, the rate of extreme rainfall increases by 7% for every degree of increase in temperature. Increases the rate of strong cyclones. The report says that if the temperature of the earth increases by 3 degrees Celsius, the world will be affected by two to three times of terrible heavy rains every century. A severe drought once every decade will dry up most of the land and lose fertility four times. The incidence of heat waves has already increased by 2.8 times. Another 1°C increase in temperature will increase 9.4 times and increase the temperature by 5°C.
the nature
“This report is the reality,” said climate expert and IPCC working group member Valerie Masson-Delmot. By burning fossil fuels and emitting greenhouse gases, humans have already raised the Earth’s temperature by about 1°C (0.8°C to 1.2°C) above pre-industrial levels, the report says. This means that on average the Earth’s temperature has risen by 0.1 degrees Celsius per decade due to human-made causes.
“The results of the report make it clear that we are already in a climate crisis,” said Zurich-based scientist Sonia Jeniferaton.
Bangladesh climate expert Salimul Haque said, “It is clear in the IPCC report that we are suffering from climate change due to human-made greenhouse gas emissions. As a result, the temperature of the earth is increasing. The number and intensity of disasters has increased.
