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Bangladesh is known for its vulnerability to climate change and more specifically to natural disasters. It is important to mention the fact that the location of the country is vulnerable for the presence for three powerful rivers, Asian rivers, Brahmaputra, Ganges and the Meghna along with their numerous tributaries that could result massive floods.
Climate change in Bangladesh is expected to have an impact on the Dhaka River System water quality, with increased monsoon flows and lower summer flows. However, these changes will not greatly affect the extremes of water quality to any great extent due to the overwhelming impact of pollutant discharges into the system. [20]
This corresponds to reaching 1.5 °C (2.7 °F) and 2 °C (3.6 °F) thresholds under that scenario: earlier research suggested that for maize, this would increase risks for multiple simultaneous breadbasket failures (yield loss of 10% or more) from 6% under the late-20th century climate to 40% and 54%, respectively.
The flood originated from the major rivers flowing into the Jamuna, (the lower stream of the Brahmaputra River), Meghna, Padma, and Ganges basins, following continuous rainfall that began in June and lasted until September. [1] [2] [3] It reportedly affected 32–45 out of a total of 64 districts, including Dhaka, the capital of Bangladesh. [3] [4]
Agriculture is the largest employment sector in Bangladesh, making up 14.2 percent of Bangladesh's GDP in 2017 and employing about 42.7 percent of the workforce. [1] As of the financial year 2022 to 2023, the agricultural sector contributed to more than 12% of GDP. [2]
It also affects agriculture in several ways including productivity, agricultural practices, environmental effects, and distribution of rural space. [19] Extreme events such as droughts, disease, and pests will be heavily impacted resulting in an increase of food prices from 3-84% by the year 2050. [ 20 ]
Climate change has forced many people in Bangladesh living in rural areas to migrate to cities that has caused a sharp rise in the slum population of Dhaka. [8] As Bangladesh is only less than 20 feet above sea level, there are fears and concerns that by the end of the 21st century, more than a quarter of the country will be inundated and 15 million people will be displaced due to sea level ...
[3]: 1508 While total food production to date had been increasing, climate risks to agriculture and food security are expected to accelerate after 1.5 °C (2.7 °F) is exceeded. [ 3 ] : 1490 These risks will be regionally uneven, as food security is expected to improve in some countries or even country sub-regions, while declining in others.