Environment
Scientists Explain New Light On Methane Mystery
Atmospheric levels of methane, 20 times more powerful than Carbon Dioxide (CO2) at trapping heat, stayed steady for two decades to 2006 on wider fertilizer use to grow rice or a surge in natural gas demand, according to two separate studies in the journal Nature.
Climate researcher, Fuu Ming Kai, from the Massachusetts Institute of Technology’s Singapore research centre, said in one study that methane output from rice fields in the Northern Hemisphere dropped during the period as fertilizer replaced manure and because of reduced water use.
In the second study, Murat Aydin at the University of California, Irvine, concluded that a drop in methane emissions from more efficient burning of fossil fuels and a surge in natural gas demand.
The studies aim to solve a puzzle that has confounded climate scientists for years: why did methane levels in the atmosphere, after rising steadily for many years, taper-off in the mid 1980s – in a dip lasting two decades?
Solving the puzzle is crucial because methane levels have risen more than 150 per cent since the start of the industrial revolution, compared with C02’s 40 per cent increase, and are on the rise again.
While the studies reach different conclusions, both studies point to human activities as the reason for the slowdown.
“In general, most of the methane sources come from the Northern hemisphere,” Fuu told newmen.
The main methane sources come from burning fossil fuels, rice paddies, coal mines, livestock and clearing and burning of tropical forests.
“We looked at the isotope data to see how it’s changed over the past 20 to 30 years. And what we saw is a trend in the isotope signature and especially in the Northern Hemisphere”.
Fuu said long-term data and comparing methane levels between the both hemispheres helped researchers conclude that about half the decrease in Northern hemisphere methane emissions could be explained by reduced emissions from rice agriculture in Asia over the past three decades.
“It is important to know what mechanism is behind the slow down. If you know this, you can adopt a suitable policy to reduce methane emissions,” Fuu said.
Aydin concluded the drop coincided with rapid natural gas production as the fuel became increasingly price competitive with oil and other fossil fuel, instead of flaring it off.
The gains came even though overall fossil fuel use increased as cleaner burning technologies help keep methane emissions in check, he said.
“We speculate that the rising economic value of natural gas during the late 20th Century and the deployment of cleaner technologies led to sharp reductions in the release of light hydrocarbons into the atmosphere”, the study says.
Environment
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Environment
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Environment
FG Urges Citizens To Prepare That Flood Will Affect 266 LGIn 33 States
This was disclosed in a keynote address by the Minister of Water Resources and Sanitation, Engr Joseph Utsev, at the AFO public presentation at the Presidential Banquet Hall, Abuja, organised by the Nigeria Hydrological Services Agency, NiHSA, with the theme ‘Smart Water Resources Management: Moving from Oil to Water-Based Economy’.
Utsev acknowledged that early information saves lives, livelihoods, protects infrastructure, and reduces economic losses, saying that, as part of the Federal Government’s commitment to improving flood forecasts and preparedness, is the modernisation of the national hydrological monitoring networks.
The minister also said his ministry is strengthening collaboration with the Nigerian Meteorological Agency, NiMet, to ensure better integration of weather and water information, as it is critical for delivering reliable forecasts that support farmers, disaster managers, urban planners, and other key sectors of the economy.
He said AFO is therefore not just a scientific report, it is a call to action by all in terms of preparation ahead of the flood season, as early information saves lives, livelihoods, protects infrastructure, and reduces economic losses.
However, the minister acknowledged that forecasts alone are not sufficient if the information does not translate into action at the community level, which he said his Ministry is working with other relevant government agencies to mitigate the impacts of flooding.
Meanwhile, the 2026 AFO presentation had in attendance President Bola Tinubu, represented by the Minister of Environment, Balarabe Lawal.
Others present were the federal ministries: Water Resources and Sanitation; Livestock Development, Environment and Women Affairs.
Others include the Speaker of the House of Representatives, State Governments, Service Chiefs, development partners and the media.
He said: “The 2026 flood forecast presented today provides us with the following general highlights: High Flood Risk: 14,118 communities in 266 Local Government Areas (LGAs) in 33 States and FCT fall within the high flood risk areas. The States are: Abia, Adamawa, Anambra, Bauchi, Bayelsa, Benue, Borno, Cross River, Delta, Ebonyi, Edo, Enugu, Gombe, Imo, Jigawa, Kaduna, Kano, Kebbi, Kogi, Kwara, Lagos, Nasarawa, Niger, Ogun, Ondo, Osun, Oyo, Plateau, Rivers, Sokoto, Taraba, Yobe, Zamfara and the FCT.
“Moderate Flood Risk: 15,597 Communities in 405 LGAs, 35 states except Ekiti State, will experience moderate flood risk.
“Low Flood Risk: Incidences of minimal flood is expected in 923 communities in 77 LGAs in 24 States. The States are Adamawa, Anambra, Bauchi, Bayelsa, Benue, Borno, Cross River, Delta, Ebonyi, Edo, Jigawa, Kaduna, Kano, Kebbi, Kogi, Nasarawa, Niger, Ogun, Ondo, Osun, Oyo, Sokoto, Taraba and Zamfara.
“Flash and Urban Flooding: Flash and urban flooding are projected in major cities in the country due to high rainfall intensities, low attention to management of water facilities including drainage systems, waterways and lack of flood resilience structures. Cities such as Abakaliki, Abeokuta, Abuja, Asaba, Benin City, Birnin–Kebbi, Calabar, Ibadan, Kaduna, Kano, Lagos, Makurdi, Nguru, Onitsha, Oshogbo, Port Harcourt, Sokoto, Warri and Yola, among others are to experience these categories of flood incidence.
“Coastal and Riverine Flooding: Bayelsa, Cross River, Delta, Lagos, Ogun, Rivers and Ondo are to experience coastal flooding due to rise in sea level and tidal surge and this would impact on fishing, wildlife habitation and river navigation.”
He also emphasised that, “As we transition toward a water-based economy, we must recognize that water security is national security. Effective water governance will play a critical role in ensuring food security, supporting economic diversification, and improving the overall well-being of our citizens.”
However, the Minister called on State andand Local Governments including communities to start preparation to mitigate the impacts of the predicted flood.
“I therefore call on state governments, local authorities, disaster management agencies, farmers, and community leaders to carefully study the findings and advisories contained in this document and take the necessary steps to prepare for the coming flood season.
“Furthermore, we are encouraging state governments to integrate flood risk considerations into land-use planning, urban development, and infrastructure design.
“Floodplains must be properly managed, drainage systems must be improved, and communities must be empowered to adapt to changing climate conditions.
“Preparedness remains the most effective strategy for reducing flood risks. When we plan ahead, we protect lives, safeguard infrastructure, and preserve economic gains. Let us commit to building a safer, more resilient and more water-secure nation.”
Earlier, the Director General/Chief Executive Officer, Nigeria Hydrological Services Agency, Umar Ibrahim Mohammed, NiHSA, said the 2026 AFO aligns with the Renewed Hope Agenda in terms of economic diversification, infrastructure development, climate resilience, food security and sustainable water management.
Mohammed also explained that, “The AFO has evolved into an important national planning instrument that provides early scientific prediction of flood risks in the country, evidence-based guide for decision-makers and platform for emergency coordination among stakeholders.
“In producing this year’s forecast, the Agency undertook a comprehensive and data-driven process to provide tailored information for high-risk flood zones and flash floods in urban cities and towns.
“Building on the success achieved through AFO publications, we have upgraded from reporting flood forecast to Flood Risk Intelligence Architecture and from the traditional modelling to Hybrid AI-Integrated Modelling system to improve forecast reliability, reduce false alarms and improve the lead time accuracy.
“Not these alone, the modelling for the 2026 forecast have been conducted in-house. This marks a strategic shift toward enhancing capacity building, manpower development and institutional resilience.”
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