The spotless white-sand beach of Le Lamantin luxury resort in Saly, about 90 kilometres south of Senegal’s capital Dakar, is lined with neat rows of sun loungers and parasols. Here, holidaymakers enjoy jet-skiing, catamaran-sailing and spa therapy, unaware that their hotel is benefiting from international climate finance channelled through the World Bank Group.

Just a few kilometres further south, however, local fishermen in Mbour, the country’s second-largest fishing port, are struggling. The beaches where they keep their boats are being progressively eaten away by rising seas that also threaten their homes.

The stark contrast between the neighbouring coastal areas highlights how global funding for climate projects – largely taxpayers’ money from rich countries – often fails to help those shouldering the burden of warming impacts, especially when it is being used to mobilise more private investment for green aims.

“They prioritise Saly because the hotels are wealthy,” said Saliou Diouf, a retired fisherman who lost his house in Mbour to encroaching waves. “The World Bank should help the most vulnerable.”

Le Lamantin is one of a dozen upscale hotels in sub-Saharan Africa acquired by Mauritius-based Kasada Hospitality Fund LP – run by Qatar’s sovereign wealth fund and multinational hotel giant Accor – which it is revamping in accordance with EDGE, a green building certification created by the World Bank.

Kasada was granted over $190 million in guarantees by the World Bank Group’s Multilateral Investment Guarantee Agency (MIGA), and loans of up to $160 million by its private-sector lender, the International Finance Corporation, to help it snap up hotels across Kenya, Nigeria, Ivory Coast, Rwanda, Namibia and Senegal, and spruce them up as Accor brands like Mövenpick.

MIGA, the little-known insurance arm of the World Bank Group, has counted its backing for the hotels as part of its climate efforts for the past three years, according to annual sustainability reports.

The five-star resort in Senegal, where rooms cost at least £220 a night ($270), is being refurbished to consume at least 20% less energy and water than other comparable buildings by its owner Kasada, which expects it to obtain EDGE certification this year.

Teresa Anderson, global lead on climate justice for ActionAid International, told Climate Home it is “shocking that what little funds there are for climate action are benefiting luxury hotels”.

“Climate finance must be used to help those most vulnerable – not to help the world’s wealthiest add a climate hashtag to their Instagram posts by the pool,” she said.

MIGA told Climate Home its support for Kasada is primarily aimed at developing Senegal’s tourism sector and creating jobs, adding that refurbishing hotels can also have beneficial climate impacts and play an important role in decarbonising the hospitality industry.

In nearby Mbour, however, the fishing community feels left behind.

“I was born here, I grew up here – when I was a child, the sea only came up to the last pole,” Diouf told Climate Home, pointing to the remnants of a Portuguese-built pontoon used to moor colonial ships in the 1800s.

In just one generation, he said, the sea has gobbled up more than 100 metres of beach in Mbour, forcing 30 families to abandon their houses and threatening hundreds more. A quarter of the Senegalese coastline – home to 60% of the population – is at high risk of erosion.

Mbour’s fast-disappearing shore is a crisis for its 11,000 fishers as big swells destroy their boats, crammed into the remaining patch of sand.

But in Saly, it’s a different story. Here, between 2017 and 2022, under a separate project, the World Bank invested $74 million in beach protection, building 19 stone walls, groynes and breakwaters to reclaim 8-9 kilometres of hotel-lined beachfront, popular with tourists.

The World Bank Group said the project helped preserve around 15,000 direct and indirect jobs by saving tourism infrastructure, while also protecting two fishing villages in Saly.

Kasada told Climate Home, meanwhile, that Le Lamantin hotel has so far created about 50 direct jobs of different types for people living near Saly, with MIGA also pointing to indirect employment stimulated by the resort such as agriculture, handicrafts and transport.

The World Bank Group (WBG) said its units work together to avoid trade-offs. “It’s not to either support hotels and the tourism sector as a driver of development, or to enhance the resilience of local communities – the WBG does both,” it said in a written response to Climate Home.

But fishermen in Mbour – which was outside the scope of the Saly coastal protection infrastructure project – are not benefiting from that approach, and even say the works in Saly have exacerbated erosion in their area. The Mbour artisanal fisheries council has devised a climate adaptation strategy to address the problem.

One of its coordinators, Moustapha Senghor, said seawalls and breakwaters are needed, but there are no funds for what would amount to “a colossal investment”. “We know exactly what we need to do, but the money is missing,” he said.

Governments and climate justice activists are putting pressure on the World Bank to significantly step up its role in funding climate projects, especially to help the most vulnerable countries and communities.

For the past three years, a group of countries led by Barbados’ Prime Minister Mia Mottley has called for reforms so that the bank can better address climate change.

At the same time, wealthy nations have been reluctant to inject more capital into its coffers, while attempts at tinkering with the balance sheet to squeeze out more climate cash only go so far.

For World Bank Group President Ajay Banga, the real solution lies in greater private-sector involvement, using scarce public money as a lever to help mobilise huge dollar sums for climate and development goals this decade.

“We know that governments and multilateral institutions and philanthropies all working together will still fall short of providing the trillions that we will require annually for climate, for fragility, for inequality in the world. We therefore need the private sector,” Banga told media ahead of this week’s annual Spring Meetings of the World Bank and the International Monetary Fund.