Responses to Climate Change: Adaptation

🏗️ Responses to Climate Change: Adaptation

Adaptation means adjusting how societies live and work to cope with the effects of climate change that are already happening or unavoidable. Even if all human emissions stopped tomorrow, some warming and its consequences are already locked in. Adaptation does not address the cause of climate change — it manages the consequences. It is generally more immediately achievable than global mitigation but does not reduce the underlying risk for future generations. The exam regularly asks you to compare HIC and LIC adaptation strategies, emphasising how wealth determines the capacity to adapt.

Country	Classification	Strategy	How It Adapts	Specific Evidence
Maldives	Small island developing state (SIDS)	Sea wall construction and artificial island creation	Protects extremely low-lying atolls from sea-level rise and storm surge	Hulhumalé, an artificial island constructed by reclaiming land from the lagoon, was built to 2 m above sea level — significantly higher than the natural islands. A $500 million sea wall surrounds the capital, Malé. However, these measures are expensive and may only delay the problem rather than solve it permanently.
Bangladesh	LIC (Lower-Income Country)	Floating gardens (baira technique)	Grows food on water-logged land during seasonal flooding	In the Barisal region of southern Bangladesh, farmers use an ancient technique of constructing floating vegetation rafts from decomposing water hyacinth. Vegetables and seedlings are grown on these floating platforms, maintaining food production when fields are submerged under floodwater. The technique is low-cost, uses locally available materials, and can be scaled without government investment — critical in a country where 10% of land is less than 1 m above sea level.
Bangladesh	LIC	Climate-resilient crop varieties	Flood-tolerant rice varieties allow harvests in increasingly waterlogged conditions	BINA Dhan 11 is a submergence-tolerant rice variety that can survive up to 14 days completely submerged in floodwater. It has been distributed to over 2 million farmers across flood-prone districts by the Bangladesh Institute of Nuclear Agriculture. As flooding frequency and duration increases with climate change, such varieties could prevent catastrophic food security failures for one of the world's most climate-vulnerable nations.
Netherlands	HIC (Higher-Income Country)	Room for the River programme	Relocates flood defences inland to give rivers more floodplain space, protecting major cities	The Room for the River programme involved a fundamental shift in flood management philosophy: rather than building higher levees to contain rivers, the Dutch widened floodplains, relocated polders (drained agricultural land), moved dykes further back from riverbanks, and deepened side channels to give rivers more room to expand safely. The programme cost approximately €2.3 billion and affected 37 locations along the Rhine, Meuse and other rivers. It was completed in 2015 and also created biodiversity benefits as natural floodplain habitats were restored.
Netherlands	HIC	Floating and amphibious architecture	Buildings designed to rise with floodwater rather than resist it	Over 100 amphibious homes have been built in Buoyant Foundations communities including IJburg, Amsterdam. These houses sit on hollow concrete foundations that allow them to float upward on rising floodwater and then settle back down as water recedes — remaining connected to utilities through flexible connections throughout. This "living with water" approach accepts that flooding will occur and designs around it, rather than trying to prevent it entirely.

The contrast between Bangladeshi and Dutch adaptation strategies illustrates a fundamental principle: adaptation capacity is closely linked to development level. The Netherlands can invest billions in engineered flood management because it has a GDP per capita of approximately $55,000 and a world-leading tradition of water engineering. Bangladesh, with GDP per capita of approximately $2,500, relies on lower-cost community-based and agricultural approaches. The Maldives, despite being a middle-income country in relative terms, faces existential risk from sea level rise regardless of wealth. This raises profound ethical questions about climate justice: the countries most vulnerable to climate change are often those that have contributed least to causing it.