Geography, Environment and Climate Change
What to master
Know Bangladesh's physiography: the deltaic plain, the three major river systems, the coastal belt, the hill tracts and the haors. Understand monsoon behaviour, cyclone tracks, riverbank erosion, salinity intrusion and flooding. Learn climate concepts: greenhouse effect, adaptation versus mitigation, nationally determined contributions, the Paris Agreement and climate finance. Know the Sundarbans as both an ecosystem and a shield, and understand why Bangladesh is described as a frontline climate victim despite low emissions.
Traps candidates fall into
Candidates mix adaptation with mitigation; planting mangroves is adaptation, reducing emissions is mitigation. Another trap is confusing causes of flooding, which include rainfall, river flow, tidal surges and drainage congestion, with a single explanation. Be careful with river names and their origins. Avoid claiming that climate change alone causes all disasters; vulnerability is also shaped by poverty, settlement patterns and governance.
Rule of thumb
For any environmental question, trace the chain from hazard to exposure to vulnerability to capacity, and place the answer at the right link.
Worked example
If asked why cyclone deaths have fallen while economic losses remain high, explain improved early warning, shelters and preparedness as reduced vulnerability, while exposure of assets and infrastructure continues to grow.