Wednesday, July 15, 2026

53 million Nigerians at risk of flooding, environmental expert warn

The expert, who is also a visiting professor at Oxford University, urged the government to action many of its ‘fascinating’ climate policies.

• August 7, 2022
Flood in Nasarawa
A flooded environment used to illustrate the story

A climate expert, Chuwumerije Okereke, says with the rise in sea level, an estimated 27 to 53 million people in the country might need to be relocated with a 0.5m increase in sea levels.

Mr Okereke, a professor and director of the Centre for Climate Change and Development at the Alex Ekwueme Federal University, Ebonyi State, said flooding is already affecting 25 million people in Nigeria.

Coastal settlements like Bonny, Forcados, Lagos, Port Harcourt, Warri and Calabar were at risk with vast amounts of oil infrastructure, according to Mr Okereke.

“In Yenagoa, there are 302,782 people estimated to be exposed to high flood risk along the Niger-Benue basin in the Niger Delta area with 630km of land susceptible to flooding.

“In Lagos, 375,000 people are exposed to flooding; the number will increase to about 3.2 million people by 2050.

“The direct estimate of damage and loss is N1.48 trillion. The total damage and loss, including indirect ones due to flooding is about N2.6 trillion,” Mr Okereke said.

The environmental expert says climate change will cost Nigeria $460 billion by 2050, if action is not taken to mitigate its effects.

”Climate change is costing Nigeria already $100 billion per annum. And that this amount will rise to about $460 billion per annum by 2050.

“And this represents a huge amount of our Gross Domestic Product (GDP).

“From 2020 till now, climate change is already costing N15 trillion, representing two to 11 per cent of the GDP, by 2050 climate change will be costing N69 trillion, representing six to 30 per cent of the GDP,” he said.

The expert, who is also a visiting professor at Oxford University, urged the government to action many of its ‘fascinating’ climate policies.

“So, we have a situation where we have a lot of various policies, documents, but very limited action on the ground and this worries me because I have been shouting that climate change poses an existential threat to Nigeria,” Mr Okereke said.

“We need to inject a lot of finance and a lot of action to stem the problem of climate change.”

NAN

We have recently deactivated our website's comment provider in favour of other channels of distribution and commentary. We encourage you to join the conversation on our stories via our Facebook, Twitter and other social media pages.

More from Peoples Gazette

farmers

Agriculture

FG tasks ECOWAS on leveraging financing strategies for agroecology

The federal government has urged stakeholders in the agriculture and finance sectors in the West Africa region to leverage financing strategies to enhance agroecology practices

Katsina State

Politics

Katsina youths pledge to deliver over 2 million votes to Atiku

“Katsina State is Atiku’s political base because it is his second home.”

Dogs and cats

Abuja

FCTA urges residents to vaccinate dogs, cats as rabies kills two in Abuja

Mr Dandam said measures were already taken to curb the spread and asked residents to report dog bites.

Waidi Shaibu

NationWide

Army warns commanders against drug abuse, unprofessional acts

Mr Ofoyeju warned that drug abuse posed a serious threat to military effectiveness and operational success.

Tunji Alausa

States

Use data to hold states accountable, minister urges education correspondents

Ms Garba described education as the most powerful tool for national development.

Released Oyo hostages

NationWide

Parade, prosecute Oyo pupils, teachers’ abductors, Ningi tells FG

The senator urged the Oyo State goverment to hire psychologists to heal the pupils.

States

Massive security operation ongoing to rescue abducted principal, students, NECO official: Ododo

Mr Fanwo stated that advanced technology was also being deployed to support the rescue operation.

APC LOGO

States

APC vows massive turnaround in Osun if candidate wins governorship poll

Mr Omowaiye urged security agencies to provide adequate protection for party members during campaigns and on election day.