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Climate, clean air action could prevent 144 million premature deaths by 2050 – Report

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A new report by the United Nations Environment Programme (UNEP) and the Climate and Clean Air Coalition (CCAC) has found that integrated action to tackle climate change and air pollution could prevent about 144 million premature deaths globally by 2050.

The report, titled Hidden Assets: The Economic and Health Case for Climate and Clean Air Action, said implementing 25 proven measures across energy, transport, industry, agriculture, household cooking and heating, and waste management could significantly reduce exposure to harmful air pollutants while also slowing climate change.

The measures include expanding renewable energy and energy efficiency, improving oil and gas operations, strengthening vehicle emission standards, promoting electric vehicles, adopting cleaner cooking and heating solutions, improving agricultural and livestock practices, reducing emissions from waste, and phasing down hydrofluorocarbons (HFCs).

The finding comes against the backdrop of an already severe global air pollution crisis.

In March 2025, the World Health Organisation (WHO) disclosed that about seven million people die prematurely from air pollution annually, with 99 per cent of the world’s population breathing air that exceeds its recommended guideline limits.

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Air pollution, a major health threat

The new UNEP and CCAC assessment estimated that the 25 measures could prevent 96 million premature deaths linked to exposure to ambient fine particulate matter (PM2.5), 43 million deaths associated with household PM2.5 exposure and five million deaths linked to ozone by 2050.

The interventions could also avert an estimated 62 million cases of childhood asthma, 87 million heart attacks, 63 million cases of chronic obstructive pulmonary disease (COPD), 56 million cases of diabetes, 45 million strokes, 36 million cases of dementia and seven million cases of lung cancer.

The projected health gains are significant because ambient PM2.5 and ozone alone caused an estimated 6.4 million premature deaths worldwide in 2025, according to the report. Household PM2.5 exposure contributed another two million deaths, including about 300,000 children.

PM2.5 refers to fine particles small enough to penetrate deep into the lungs and enter the bloodstream, increasing the risk of respiratory and cardiovascular diseases.

Without stronger intervention, the report warned that the proportion of the global population exposed to the most dangerous PM2.5 concentrations could rise from 27 per cent in 2025 to 34 per cent by 2050.

Africa’s burden

The assessment identified Africa as one of the regions that could record substantial health and economic gains from integrated action.

It said only about 20 per cent of Africa’s population had access to clean cooking fuels as of 2020, making household air pollution a particularly important concern on the continent.

For Sub-Saharan Africa, the report identified clean cooking as one of the most important near-term interventions because reducing household exposure to harmful smoke can deliver immediate health benefits.

Southern Africa was projected to record a benefit-cost ratio of 26:1, while Sub-Saharan Africa and North Africa could each generate about US$11 in benefits for every dollar invested.

The report said regions in Sub-Saharan Africa and Southern Africa could avoid damages equivalent to 3.5 to four per cent of regional Gross Domestic Product (GDP) by 2035 through implementation of the measures.

Health and economic gains

The economic case for acting is also significant.

The report found that every US$1 invested in the 25 measures could generate about US$15 in economic benefits.

Globally, the measures could generate economic benefits equivalent to 2.8 per cent of global GDP by 2035, rising to about 11.4 per cent by 2100.

The gains would come from reduced healthcare spending, increased labour productivity, greater workforce participation and avoided damage from climate change.

The climate benefits would also be substantial. The assessment projected that implementing the measures could avoid about 0.34°C of global warming by 2050 and approximately 1.4°C by 2100.

By 2050, the 25 measures could cut global carbon dioxide emissions by half, methane emissions by 60 per cent and black carbon and PM2.5 precursors, including sulphur dioxide and nitrogen oxides, by 70 per cent.

The report said pursuing climate and air quality measures together produces greater benefits because the two problems share many of the same sources, including fossil fuel combustion, agricultural practices and industrial processes.

Delays threaten potential gains

Despite the potential benefits, the assessment warned that delayed action could result in preventable deaths, disease and economic losses.

It estimated that every year of delay could forgo more than 0.5 per cent of global GDP in benefits, equivalent to more than US$1.5 trillion in combined market and non-market value.

Globally, implementation of the 25 measures is expected to be delayed by about 7.5 to eight years on average, with institutional barriers accounting for about 2.4 years.

The report said the biggest obstacles were not necessarily technological but institutional, including fragmented decision-making, weak coordination between government agencies, inadequate financing and limited enforcement capacity.

READ ALSO: Conflict and Climate: Double threat driving Great Lakes displacement

Nigeria’s role

Nigeria was cited as an example of a country taking steps towards integrated action through the inclusion of short-lived climate pollutants in its Nationally Determined Contribution (NDC).

The report also cited Nigeria’s awareness-raising initiative on open burning and its Rural Women Energy Security Programme as examples of interventions capable of driving social and technological change.

Call to action

The assessment urged governments to integrate climate and clean air action into national economic planning and investment strategies, while increasing funding for institutional capacity, air quality monitoring, emissions inventories and enforcement.

It also recommended prioritising measures capable of producing rapid health gains, including clean cooking, methane controls targeting leaks, venting and flaring, organic waste management and transport measures.

The report said international partners should also mobilise finance for institutional strengthening, policy development, technology transfer and infrastructure investment, particularly in developing regions facing greater climate and pollution risks.


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Health

Diphtheria: Jos North steps up surveillance as Plateau intensifies response

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The Jos North Local Government has intensified disease surveillance and community sensitisation as health authorities work to contain a diphtheria outbreak in Plateau State.

The council’s chairman, John Christopher, on Saturday handed over motorcycles to the local government’s health directorate to strengthen field surveillance, contact tracing and community outreach across the area.

The development is expected to enable health workers to reach communities more quickly, conduct follow-up visits, collect samples and identify suspected cases, particularly in areas that are difficult to access.

The intervention comes amid reported diphtheria cases in the area, where 117 suspected cases and 15 deaths had been recorded as of 1 September, according to health authorities.

Plateau State has also reported suspected cases in Jos South, Bassa and Wase local government areas.

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The state government has ordered the temporary closure of public and private primary and secondary schools from Monday as part of measures to contain the spread of the disease.

In Jos North, the council has been working with the state Ministry of Health to strengthen surveillance, case management and community mobilisation.

Mr Christopher said the additional logistics were necessary to ensure that health workers could respond promptly to suspected cases.

“For us, the health and safety of our people remain a priority. Diphtheria spreads fast, and we cannot afford delays,” he said during the handover.

“These motorcycles will help you reach every corner. Be proactive, be professional and make sure no community is left behind.”

The director of health of the council, Martha Kummiap, said the motorcycles would improve the directorate’s ability to conduct regular field visits and trace people who may have been exposed.

“This will change how we work. We can now do daily visits, trace contacts faster and get suspected cases to the health facility before it’s too late,” Ms Kummiap said.

She said the collaboration with the state Ministry of Health had also provided training and supplies to support health workers involved in the outbreak response.

The council said it had commenced radio sensitisation and community outreach to educate residents about diphtheria and measures to reduce transmission.

READ ALSO: Jos University Teaching Hospital’s psychiatric facility stretched as mental health cases rise

Diphtheria is a vaccine-preventable bacterial disease that can spread through respiratory droplets and close contact. It can cause serious complications and death when treatment is delayed.

Health authorities have urged parents and caregivers to ensure that children receive routine vaccinations and advised residents to seek medical attention promptly when symptoms such as sore throat, fever or difficulty breathing occur.

Mr Christopher also urged residents to cooperate with health workers during surveillance and contact-tracing activities.

“We are custodians of our communities. If we keep our drainages clean, if we report early, if we support the health teams when they come around, we will defeat this,” he said.

The council said it would continue working with the Plateau State Ministry of Health and other partners to strengthen surveillance and response until the outbreak is contained.


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Health

Donor cuts, govt inaction negatively impact HIV patients in Rivers, Akwa Ibom

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This is the final part of a three-part series. You can read the first part here and the second part here.

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Long before the gradual withdrawal of international HIV funding exposed the fragility of Nigeria’s HIV response, Akwa Ibom and Rivers states had enacted laws intended to prevent such a crisis.

The laws recognised that donor assistance would not last forever and envisaged a future in which governors provided political leadership, governments financed programmes from domestic resources, local councils coordinated community interventions, and legal protections encouraged people living with HIV to seek treatment without fear of discrimination.

On paper, the laws offered a blueprint for sustainability. However, a PREMIUM TIMES investigation found little publicly available evidence that several of the statutory mechanisms operated as intended during the period under review, even as donor-supported community services began disappearing in both states.

The findings raise a critical question: if institutions specifically created to sustain the HIV response are not fully functional before donors leave, what happens when external funding eventually disappears? 

The council that should lead HIV response

In Akwa Ibom, the HIV/AIDS Control Agency Law establishes the State Council on HIV/AIDS as the highest policy-making body responsible for coordinating the state’s HIV response.

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Its composition reflects the importance attached to the epidemic. The governor chairs the council, while the deputy governor serves as vice-chairperson. Other members include the Secretary to the State Government, the Head of Service, commissioners from key ministries and the Director-General of the State Agency for the Control of AIDS (SACA).

Governor Umo Eno of Akwa Ibom state (CREDIT: Pastor Umo Eno on X)
Governor Umo Eno of Akwa Ibom state (CREDIT: Pastor Umo Eno on X)

Under the law, the council is responsible for providing political leadership, mobilising funding, coordinating partnerships, reviewing implementation of the state’s HIV strategic plan and ensuring that the response remains effective.

The law requires the council to meet at least once every quarter.

Yet, despite repeated requests, the Akwa Ibom government did not provide PREMIUM TIMES with records showing how many statutory meetings were held between January 2023 and June 2026, the resolutions reached at those meetings, or actions taken to prepare the state for declining international donor support.

PREMIUM TIMES also reviewed official government websites, social media pages, publications, press releases and other publicly available records but found no evidence of quarterly council meetings on HIV during the period.

When asked whether the statutory meetings had taken place, Commissioner for Health Ekem Emmanuel said Governor Umo Eno “holds meetings on HIV/AIDS” but referred questions about the number of meetings and records of deliberations to the State Agency for the Control of AIDS.

The commissioner later said he could not be expected to keep track of such meetings.

“You honestly think I will be keeping count of the meetings? I was not the Commissioner for Health in 2023,” he said.

On 7 July, PREMIUM TIMES sent a detailed 12-point enquiry to the agency’s Programme Manager, Enobong Akpan, seeking records of council meetings, budget releases, implementation of the HIV law and the state’s preparedness for shrinking donor support.

Mr Akpan acknowledged receiving the enquiry and initially promised to respond after returning to Akwa Ibom from an official meeting. Despite repeated reminders, he did not respond to the questions.

Missing grassroots structures

Akwa Ibom’s HIV law extends beyond state-level governance. It establishes Local Action Committees on HIV/AIDS across all 31 local government areas, with council chairpersons expected to lead HIV coordination at the local level.

The committees are designed to mobilise communities, coordinate prevention and treatment activities, strengthen awareness campaigns and receive financial support through local government budgets.

Effectively, they are intended to ensure that the HIV response reaches communities long before patients arrive at hospitals or clinics.

However, interviews conducted by PREMIUM TIMES with officials of the Network of People Living with HIV/AIDS in Nigeria (NEPWHAN) in Akwa Ibom, community advocates and local government stakeholders found no evidence that the committees were actively performing those statutory roles.

“We have tried engaging local governments, particularly in areas with high HIV prevalence, but the response has been poor,” Elizabeth Udo, Akwa Ibom State Coordinator of NEPWHAN, told PREMIUM TIMES.

Elizabeth Udo, Akwa Ibom State Coordinator of NEPWHAN
Elizabeth Udo, Akwa Ibom State Coordinator of NEPWHAN

 PREMIUM TIMES also could not independently identify recent HIV interventions directly implemented by any of the state’s 31 local governments under the framework created by the law.

Scrutiny of local government spending is further complicated by the 31 councils’ failure to publish their budgets and other fiscal documents, a practice PREMIUM TIMES previously reported to violate the state’s fiscal responsibility law.

The situation in Rivers is similarly unclear.

Governor Siminalayi Fubara
Governor Siminalayi Fubara PHOTO CREDIT:Governor Fubara on X]

The Rivers State Agency for the Control of AIDS Law establishes governance structures intended to sustain political commitment, mobilise domestic financing and coordinate the HIV response through a Governor’s Committee on AIDS, a State Council on HIV/AIDS and Local Government Action Committees.

Those institutions were expected to become increasingly important as donor support declined.

However, when PREMIUM TIMES requested records on 7 July showing whether the statutory structures remained functional during the donor transition period, the Rivers State Agency for the Control of AIDS did not respond.

Its Programme Manager, Naaziga Francis, initially indicated that he preferred an in-person interview. But when a PREMIUM TIMES reporter travelled to the agency’s office in Port Harcourt, Mr Francis declined to answer the questions.

“I am just a civil servant. Those questions you have asked will have political consequences,” he said.

PREMIUM TIMES also visited the Rivers State Ministry of Health. Officials explained that the prolonged political crisis in the state meant no commissioner had been appointed, while the permanent secretary had retired.

Repeated telephone calls, text messages and WhatsApp messages sent to the state’s Commissioner for Information, Honour Sirawoo, were not answered before publication.

Law still waiting for assent

Beyond questions about governance and financing, another layer of protection remains incomplete.

Across Nigeria, fear of discrimination continues to discourage some people from testing for HIV, disclosing their status or remaining in treatment.

Although the National HIV and AIDS Anti-Discrimination Act prohibits discrimination against people living with HIV, health experts and human rights advocates argue that state-level laws remain important because they can provide clearer implementation mechanisms, assign responsibilities to local institutions and improve access to redress.

Akwa Ibom has attempted to enact such legislation for years.

The State House of Assembly first passed an HIV Anti-Stigma Bill in 2021. Despite repeated calls for then-Governor Udom Emmanuel to sign it, the bill lapsed after failing to receive gubernatorial assent before the Assembly completed its tenure.

Lawmakers passed the legislation again in September 2024, but nearly two years later, it still awaits the governor’s assent.

For people like Grace, Mercy, Victoria and Peter, whose experiences are at the centre of this investigation, the delay represents more than legislative bureaucracy. They say it prolongs an environment in which people living with HIV continue to experience discrimination in workplaces, families and communities.

Ms Udo said NEPWHAN members continue to report workplace discrimination, family rejection, denial of inheritance and gender-based violence linked to their HIV status.

“The government should urgently assent to the anti-stigma law,” she said.

“We should not continue relying on the United States alone for HIV response while neglecting the legal protections that encourage people to seek treatment without fear.”

Rivers State has yet to enact a similar anti-stigma law, although its annual budgets have included provisions for the legislative process.

According to Lawyers Alert, a legal and human rights organisation that provides legal services to vulnerable populations, including people living with HIV, the absence of enforceable state legislation weakens both public health and human rights protections.

Its Legal Adviser, Peace Okesola, said fear of discrimination discourages some people from taking HIV tests, disclosing their status, commencing treatment early or remaining in care.

“The enactment and implementation of HIV anti-stigma laws are not merely legislative exercises; they are essential public health and human rights interventions,” the organisation told PREMIUM TIMES. 

Assembly promises oversight

The Chairman of the Akwa Ibom House of Assembly Committee on Health, Moses Essien, told PREMIUM TIMES that the legislature had fulfilled its constitutional responsibility by appropriating funds for the HIV response.

“The House of Assembly has exercised its constitutional power by making adequate financial appropriations in the budget for HIV/AIDS,” he said.

“Release of funds is for the appropriate agency to apply for.”

He said lawmakers had not received any formal report indicating that approved funds were withheld.

Regarding concerns about whether the State Council on HIV/AIDS had met as required by law, Mr Essien said the committee would engage the State Agency for the Control of AIDS later this year.

“We will surely direct adherence to regulations covering the agency,” he said.

On the unsigned HIV Anti-Stigma Bill, Mr Essien, who sponsored the legislation, said he recently reminded Deputy Governor Akon Eyakenyi to bring it to the governor’s attention.

He disagreed with suggestions that the Local Action Committees on HIV/AIDS were inactive.

“I won’t subscribe to the committee’s inactivity because I am aware of steps taken by SACA regarding the functionality of all committees,” he said.

He added that Akwa Ibom had established a Local Resource Mobilisation Committee, headed by former Speaker Sam Ikon, to explore domestic financing options as donor support declines.

“As an Assembly that is concerned with the welfare of our people, we will make more budgetary provisions for HIV/AIDS in the next budget,” he added.

Beyond budgets, behind every statistic

The unanswered questions at the heart of this investigation extend beyond government paperwork.

Why were HIV appropriations identified by PREMIUM TIMES not reflected in available budget implementation records? Have the statutory governance structures established under state laws been operating as required? What concrete measures have Rivers and Akwa Ibom taken to sustain HIV services as donor funding declines? And how will the governments finance community-based interventions that patients and advocates say have disappeared?

For people living with HIV, these are not abstract questions of governance.

They determine whether a missed clinic appointment triggers a follow-up phone call, whether medicines reach patients who are too afraid to be seen at HIV clinics, whether newly diagnosed adolescents find support instead of isolation, and whether decades of progress against one of Nigeria’s most persistent public health challenges can survive a changing funding landscape.

Across the three parts of this investigation, PREMIUM TIMES found a widening gap between the structures established to sustain the HIV response and the experiences of people who depend on them.

Budgets reviewed by PREMIUM TIMES show that funds were appropriated. Laws enacted by both states created institutions intended to provide political leadership, sustainable financing and community coordination. Government officials insist efforts are being made.

Yet critical questions about implementation, accountability and preparedness remain unanswered.

Grace’s family still remembers a woman who fought to preserve her dignity until she believed the system created to protect her had failed her.

Her story, and those of countless others, point to the human cost of that uncertainty. Behind every unaccounted-for appropriation, delayed anti-stigma law and unanswered question about statutory institutions are people whose survival depends not only on antiretroviral medicines, but also on governments fulfilling the responsibilities they have already written into law.

Editor’s Note: *The names marked with asterisks have been changed to protect the privacy and identities of vulnerable individuals featured in this report.

This reporting was supported by the Centre for Journalism Innovation and Development (CJID).


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