West Africa stands at a critical juncture as the region grapples with increasingly severe ramifications of climate change. The Sahel region heating 1.5 times the global average, a trend that has turned seasonal discomfort into an escalating crisis. Heatwaves linked to climate change have become hotter, longer, and more extreme in their impact over the past few decades
In February 2024, record-breaking heatwaves that left a stark imprint across Ghana, Benin, Togo ad Mali. Temperatures rose above 40°C (104°F) in numerous localities, with heat indices spiking to 50°C (122°F). In Mali, a local hospital reported being overwhelmed by a surge of heat-related illnesses, with 102 reported deaths in April alone, an alarming increase compared to the 130 deaths documented during the entirety of April in the previous year. The most intense heatwave occurred between February 11 and 15, when temperatures repeatedly surpassed 40°C.
In Nigeria, healthcare professionals reported a significant uptick in patients arriving with symptoms linked to heat stress, while many residents voiced distress over the unbearable heat that disrupted their sleep patterns during humid nights. In response, the Nigerian National Meteorological Agency issued public health warnings regarding extreme temperatures. Similarly, Ghana’s national meteorological agency warned citizens to prepare for hazardous temperature levels, emphasizing public safety considering the escalating crisis.
This public health emergency even reached international sporting events: during the Africa Cup of Nations (AFCON) finals in Côte d’Ivoire, organizers implemented additional cooling breaks to protect players. A study conducted by World Weather Attribution pointedly stated that the exceptional temperatures recorded in 2024 would not have materialized without the significant influence of climate change; researchers concluded that such extreme heat events are now at least ten times more likely due to human-driven warming
Beyond the immediate health threats posed by soaring temperatures, West Africa is also grappling with alterations in weather patterns that include both climate-induced droughts and severe flooding. These phenomena are wreaking havoc on agricultural cycles, leading to substantial reductions in food production across the region. The harsh climate conditions have particularly severe repercussions on agricultural outputs, affecting essential crops as well as vital cash crops like cocoa. West Africa is responsible for approximately 70% of the world’s cocoa production, accounting for a significant 10% of Ghana’s GDP as of 2021 while providing livelihoods for over a million farmers. Cocoa trees are particularly sensitive to environmental conditions; they thrive within specific temperature, water, and soil parameters, all of which have been adversely affected by climate change.
In late 2023, excessive rainfall created waterlogged soils that led to widespread crop diseases. Cocoa pods rotted prematurely or hardened on the tree, making them unfit for harvest. As the 2024 cocoa harvest season progressed, farmers continued to report yields that fell drastically short of expectations. The International Cocoa Organization projected a global decline in cocoa production of 11.7% for the 2023-2024 season, signaling alarming trends for an industry on which many livelihoods depend.
As the situation unfolds, researchers warn that the challenges facing cocoa cultivation are expected to become increasingly severe. By the 2050s, Ivory Coast, the world’s top cocoa producer may lose over 50% of its viable cocoa farmland due to shifting climate zones and threatening the future of an industry that is not only economically vital but also culturally significant in the region.
The collapse of agricultural reliability in West Africa threatens not only food production, but regional economic stability and public health. These shocks fall hardest on rural and low-income communities, many of whom already face chronic heat exposure and limited access to infrastructure or financial protection. This is not just environmental volatility; it is a widening vulnerability gap.
The convergence of extreme heat, cocoa failure, and food insecurity reflects a structural breakdown that undermines basic rights to food, health, livelihood, and security. These harms are not abstract but define daily life for millions across the region.
In response to this growing crisis, a pan-African coalition known as the African Climate Platform (ACP), comprising more than 50 civil society organizations from all five subregions of the continent, is calling for legal accountability. ACP is petitioning the African Court on Human and Peoples’ Rights for an advisory opinion that would clarify states’ obligations under human rights law in the face of worsening climate impacts.
West Africa’s experience with deadly heatwaves and collapsing cocoa systems is one of several regional cases included in the petition. It demonstrates how state inaction and insufficient adaptation can lead to conditions where rights are eroded, livelihoods destabilized, and justice delayed. ACP’s goal is clear: to ensure climate harm is not treated solely as a scientific challenge but recognized as a legal one, with enforceable consequences.