The monsoon season has arrived in South Asia and has already ravaged large swathes of farming and urban areas, leaving millions who were already suffering the effects of the COVID-19 pandemic in financial ruin.
Approximately 10 million people in India, Bangladesh, and Nepal have been affected  by monsoon floods in 2020, the worst flooding since 1998.  Over 550 people have died  as a result, while over a million have been displaced or marooned.
One-third of Bangladesh was underwater  after torrential rains caused 53 rivers to overflow  in June , when Bangladesh was just beginning to recover from the devastation left by Cyclone Amphan  in May.
Expat Bangladeshi M. Jubair Ahmed posted some images of flooding in the southern parts of the country:
Flood in Southern part of Bangladesh pic.twitter.com/iEdQOrkVCl 
— M. Jubair Ahmed (@MJubairAhmed1) August 21, 2020 
Journalist Rafiqul Islam Montu wrote  on the GainConnection website that:
Villagers lost their livelihood and have found no work, hence no income. Unemployment is rising. Cyclone affected families are struggling to get their daily food. There is an acute shortage of drinking water as well. The COVID-19 pandemic has made things worse, as relief supplies are affected. The west coast of Bangladesh is facing multiple disasters.
The voluntarily repaired #embankment  was washed away by the pressure of the tide. People are floating in the water again. The embankment that collapsed in Cyclone Ampan was repaired at the initiative of the villagers. Picture of the west. #coastofBangladesh .@third_pole  pic.twitter.com/EJMgN5qgcp 
— Rafiqul Montu (@ri_montu) July 24, 2020 
According to Bangladesh's Ministry of Agriculture , BDT 13.23 billion (US$ 156 million) worth of crops have been damaged, and approximately 257,148 hectares of farmland submerged by floodwaters, affecting over one million farmers.
According to UNICEF , more than 3.3 million people in Bangladesh, among whom 1.3 million are children, have been rendered homeless or are living in hazardous, unsanitary conditions.
The devastation comes at a time when emergency and health services are overwhelmed with responding to the COVID-19 epidemic.
The impact of India's water management
India has built over 5,000 dams and embankments  on transnational rivers, with many of these affecting the flow of water o Bangladesh . In the dry season, rivers such as the Teesta are reduced to narrow streams.
When India opens its floodgates  during the monsoon season, the added pressure causes erosion on river banks, affecting nearby settlements. Bangladesh has several  longstanding issues with India around the sharing of water.  The latest agreements signed in 2019 between India and Bangladesh have been met with criticism  from Bangladeshi citizens who say the arrangements favor India, which possesses a natural advantage as rivers headwaters are located within its borders.
— South Asian Monitor (@S_A_Monitor) August 17, 2020 
Two-step trigger system
This year, the United Nations Office for the Coordination of Humanitarian Affairs (OCHA) worked with International Federation of Red Cross and Red Crescent Societies (IFRC) and the Bangladesh Red Crescent Society (BDRCS) to implement a new model of anticipatory humanitarian action  that aims to distribute humanitarian aid to potentially affected populations before a disaster strikes.
The program has a two-step trigger system  — a pre-activation trigger, based on the GloFAS forecast , and an activation trigger, based on the Government of Bangladesh's Flood Forecasting and Warning Centre (FFWC ). After the two triggers have been activated, the government distributes allocated funds accordingly.
It's finally happening! They call it #anticipatory  #humanitarian  #action . Interesting.. but what happened to Disaster Risk Reduction #DRR  as a term?
Faster than floods: How to prevent a double disaster in Bangladesh https://t.co/vZt0WQucbi 
— Minna (@MinnaAja) August 19, 2020 
On July 4, severe flooding was forecast  for the approaching weeks along the Jamuna River.
The United Nations promptly released  US$ 5.2 million from its Central Emergency Response Fund (CERF) for distribution among the communities most likely to be affected by the floods.
Recipients of the funds can then prepare by purchasing food, medicine, and reinforcing their homes before the flooding occurs.
Raquib Rony, who works at the International Federation of Red Cross and Red Crescent Societies Bangladesh office, tweeted:
81179 tube wells were damaged by the on going #floods  in #Bangladesh . With the support of @IFRC , @BDRCS1  started to provide tube well disinfection services where the water receded. Families do not need to worry to go other places to collect drinking water.📷BDRCS #Jamalpur  Branch pic.twitter.com/cl3QaFTyfk 
— Raquib Rony (@RaquibRony) August 20, 2020 
Climate activist Greta Thunberg announced  in a July 28 tweet that she will donate 100,000 euros to BRAC, ActionAid Bangladesh, and other humanitarian organizations in Bangladesh and India working in the field:
Right now millions are suffering from extreme flooding fuelled by the climate crisis in India and Bangladesh – already hit by the devastation of cyclone Amphan and COVID-19.
My foundation will donate €100.000 prize money to BRAC, Goonj, Action Aid India- and Bangladesh. 1/3 pic.twitter.com/oOMZ3jrhsV 
— Greta Thunberg (@GretaThunberg) July 28, 2020 
Since July, Bangladeshi students have been participating in a digital campaign in partnership with Fridays For Future — Bangladesh , the national chapter of Thunberg's climate movement, posting portraits of themselves holding placards with demands and slogans such as “no future under water” and “mother nature shouldn't be drowned.”
#RT  @GretaThunberg : RT @FFF_Bangladesh : Today's, FFF Barishal has addressed the biggest problem facing Bangladesh right now in their online strike. They want Permanent solution & recovery for flood affected people. @GretaThunberg  @Fridays4future  #Digi … pic.twitter.com/VL2TbluCWK 
— Travis 4 Climate🌎 (@Travis4Climate) August 15, 2020 
For many Bangladeshis, however, such tragedies have become normalized, cyclical events that people endure every year:
“Every time a flood comes, it destroys our house, crops and takes the lives of many. Everything is washed away by the mighty river Padma, leaving us without shelter, food or livelihood. But life goes on.”https://t.co/RyUoCMet45 
— The Third Pole (@third_pole) August 15, 2020