Africa

Time2Graze will use Sentinel-2 satellite data to track pasture biomass and support farmers and land managers to make informed decisions about grazing management, resource allocation, and sustainable land use.

By Lindsey Sloat
LANCASTER, PA, Oct 24 2025 (IPS)

Thousands of years ago, we looked to the stars for guidance — constellations like Taurus and the Pleiades signalled the changing of the seasons and the best times to plant, harvest and move animals.

Today, we may soon turn skyward once again, but this time to satellites that reveal in near-real-time when and where grasses are most nutritious and digestible. Feeding livestock at these peak moments not only boosts growth but also cuts methane, since animals release the most methane during digestion, a process known as enteric fermentation.

Globally, enteric fermentation from livestock accounts for nearly one third of methane emissions generated from human activities. This matters because methane has 86 times the heat-trapping power of CO2 over a 20-year period; yet it breaks down much faster. This means that methane reduction is one of the fastest ways to slow down the rate of global temperature rise.

Smarter grazing is a major opportunity. Farmers already rotate herds so pastures can recover but often rely on guesswork. When cattle graze younger, more digestible grasses, they produce less methane per unit of milk or meat. Yet in many regions, farms capture only 40 to 60 percent of their pasture’s potential. Unlocking this potential would improve productivity and cut emissions.

Two thirds of all agricultural land worldwide is devoted to livestock grazing, so even small efficiency gains can have a big impact. A 10 percent improvement in feed digestibility, for example, can reduce methane emissions per unit of feed or product by 12 to 20 percent.

Closing this pasture productivity gap by optimizing grazing would not just significantly reduce methane emissions, but also improve livestock keepers’ livelihoods, because increases in livestock productivity translate into more milk and more meat per animal.

The newly launched Time2Graze project, funded by the Global Methane Hub and in partnership with Land & Carbon Lab’s Global Pasture Watch research consortium, will apply Sentinel-2 satellite data and modelling to track pasture biomass.

This near-real-time data, combined with rancher observations and digital decision support tools, will provide important information for farmers and land managers, helping them to make informed decisions about grazing management, resource allocation, and sustainable land use.

This new data will offer free, open, up-to-date information that will be available on Google Earth Engine and other platforms to guide when and where animals should graze to consume the most abundant and digestible forage. To ensure usefulness to livestock farming and pastoralism, Time2Graze partners will conduct on-farm trials at more than 100 sites across eight countries in Latin America and Africa.

Alongside other livestock sector advances — improved feed additives, manure management, and animal health and genetics included — digital and data-enabled livestock management is essential to delivering climate solutions at the necessary speed and scale. Within the food system, these advances sit alongside improvements to rice production, reducing food loss and waste, and shifting high-meat diets toward plants.

Livestock management data innovations arrive at a pivotal moment in the development of international policies around methane emissions. More than 150 countries have signed the Global Methane Pledge, committing to cut methane emissions by 30 percent by 2030. Livestock enteric fermentation is the single largest source they must tackle. Likewise, the UN COP28 climate talks’ Emirates Declaration on Sustainable Agriculture and Food Systems and many countries’ climate strategies, or Nationally Determined Contributions (NDCs), now emphasize methane mitigation and climate-smart agriculture as cornerstones of their strategies.

Yet, climate finance dedicated to global livestock systems languishes at just 0.01 percent of total spend, equivalent to a US$181 billion funding gap, lagging far behind the ambition demonstrated by these international initiatives.

Innovations in satellite-based grassland and forage monitoring are emerging as powerful tools to cut methane while improving productivity. Governments, climate finance institutions, and development banks should prioritize and expand support for these kinds of solutions to accelerate their impact across the livestock sector.

Redirecting a fraction of agricultural subsidies and climate finance toward such efficiency gains could not only unlock rapid, measurable methane reductions, but also additional co-benefits, such as reducing deforestation and ecosystem conversion, safeguarding future food security, and strengthening rural livelihoods. Realizing this potential will depend not only on data, but also on farmer adoption, political will, and the ability to scale solutions across diverse grazing systems.

For generations, the stars helped farmers decide when to move their animals. Today, satellites can do the same, but with far greater precision. With more investment and adoption, these new guides can help agriculture deliver on its climate promises.

Lindsey Sloat, Research Associate, Land & Carbon Lab and World Resources Institute

IPS UN Bureau

 

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In Hela Province, in the distant interior of the PNG mainland, rural women would need to travel considerable distances by road or air to reach a hospital that provides breast screening mammograms. Credit: Catherine Wilson/IPS

By Catherine Wilson
SYDNEY, Australia , Oct 24 2025 (IPS)

The burden of breast cancer, the most common cancer among women, is global, and the projected increase in cases in the coming decades will affect women in high- and low-income countries in every region.

That includes the Pacific Islands, where it is the top cause of female cancer mortality. Now, during Breast Cancer Awareness Month, islanders talk about tackling the disparities they face and reversing the trend.

“Breast cancer is a significant health concern in Madang Province,” Tabitha Waka of the Country Women’s Association in Madang Province on the northeast coast of Papua New Guinea told IPS. “Most of our women residing in urban centers have access to enough information and facts about cancer, but at least half who live in rural areas don’t.”

Current global trends indicate that new breast cancer cases could reach 3.2 million every year by 2050, reports the World Health Organization (WHO). In the Pacific Islands, which comprise 22 island nations and territories and 14 million people, more than 15,500 cases of cancer in general and 9,000 related deaths were recorded in 2022. But experts warn that the true numbers are unknown.

“It is currently not possible to accurately estimate the true burden of breast cancer in the Pacific Islands due to significant challenges in cancer data collection and the incomplete coverage of population-based cancer registries,” Dr. Berlin Kafoa, Director of the Pacific Community’s Public Health Division in Noumea, New Caledonia, told IPS, adding that it was an issue that countries were working to rectify.

Lack of cancer data is one sign of the funding and resource constraints experienced by national health services. And women are being affected, especially in rural communities where they have less access to knowledge about breast cancer and live far from urban-based health clinics and hospitals. These are major factors in global disparities, and while 83 percent of women in high-income countries are likely to survive following a breast cancer diagnosis, the likelihood of survival declines to 50 percent in low-income countries.

Breast cancer occurs when cells in the breast change, multiply and form tumors. Symptoms can include unusual lumps or physical changes in the breasts. If the cancer is detected early, the chances of successful surgery and treatment are high. At a more advanced stage, it can spread to other parts of the body. Risk of breast cancer increases after 40 years and with a family history of the disease, as well as lifestyle factors, such as tobacco and alcohol use and lack of physical exercise. However, this is not prescriptive and about half of all breast cancers are diagnosed in women with no significant risk criteria, apart from their age.

Importantly, being diagnosed with breast cancer today is not fatal and many women can enjoy long and productive lives. The key to this outcome is early detection, but one of the hurdles for women in the Pacific is that specialist services are centralized in main cities. In Papua New Guinea (PNG), women can seek mammograms, the main method of breast screening, in hospitals in the capital, Port Moresby, and the cities of Lae and Kimbe on the northeast coast of the mainland. But most of the 5.6 million women, who make up 47 percent of the population, live in rural areas, whether densely forested mountains or far-flung islands. And it could entail a long and costly journey by road, air or boat for many to reach a hospital with a mammogram machine.

But it is also not uncommon for women to hold back from seeking medical advice or proceeding with treatment because of cultural and community taboos.

“There is evidence to suggest that cultural and community taboos, personal inhibitions and fears surrounding medical examinations are significant factors contributing to the low levels of early breast cancer diagnosis and treatment among women in Pacific Island societies,” Kafoa said.

Modesty and privacy are important to many women in traditional Melanesian societies. In Palau, for example, a study published by Australia’s Griffith University in 2021 revealed that ‘low screening rates were, at least in part, explained as being due to women feeling uncomfortable during examinations due to its personal nature.’

There can also be pressure from families that may encourage or dissuade women from taking treatment. “If the family disagrees with the treatment, women might comply due to cultural norms,” and concerns about mastectomy and how it changes women’s bodies “can cause resistance to surgical procedures,” reports a breast cancer study in Fiji published last year.

Taking action now is imperative to save women’s lives across the region and, globally, achieve Sustainable Development Goal No. 3 of good health and well-being. The International Agency for Research on Cancer (IARC) predicts that breast cancer cases could increase globally by 38 percent and mortality by 68 percent by 2050. Experts project that cancer incidence in the Pacific Islands could rise by 84 percent between 2018 and 2040. Kafoa says that the “Pacific Island governments are not yet sufficiently prepared to confront the projected surge in breast cancer by mid-century.”

The PNG government’s national health plan includes strengthening health services to reduce cancer morbidity and mortality, but a population-wide breast screening program is yet to be rolled out. Waka says there is a need for more investment in breast cancer services. “One or two facilities is not enough to cater for the large numbers of women living with breast cancer,” she stressed.

But efforts to transform the quality and outreach of healthcare in the country, through the ‘glocal’ approach of combining global technology and local pathways to action, have begun. “This process is already underway,” Dr. Grant R. Muddle, ML, a global healthcare expert who has worked to assist health system transformation in Australia, the Pacific and other regions, told IPS. He is now working with health services in PNG.

Two years ago, a collaborative project was set up with an Australian health agency that “is providing PNG with proven cancer registry software and technical support, while local officials adapt it to PNG’s context. The result is a win-win: PNG quickly gains a modern data system and trained personnel, rather than building from scratch,” Muddle explained.

Mobile technology could also be used to help expand the recording of cancer cases. “Village health workers or clinic nurses, even in isolated areas, could be trained to input basic patient and tumor details into tablets or smartphones,” he continued.

A major step in improving rural health services occurred this year when a new public hospital opened in the remote Highlands province of Enga. It is expected to have an operational mammography unit by the end of this year. But there is also a need to “take the screening technology to women, rather than expecting women to travel to the technology,” Muddle emphasized. “Globally mobile mammography clinics in vans or portable units have been used to bring breast cancer screening to underserved communities…these could be truck-mounted clinics or portable equipment that can be flown by small plane or ferried by boat to regions with no road access.”

And telemedicine, another proven strategy, can link isolated clinics to specialist doctors at provincial hospitals via video consultations.

As PNG celebrates its 50th anniversary of Independence this year, these initiatives support better outcomes for women’s breast cancer survival and the long journey ahead of meeting the nation’s healthcare goals.

“What needs to be done, we must do. Let us not compromise basic healthcare but at the same time provide specialist care. Together, let us secure a functioning health system for the 10 million people of PNG,” Prime Minister James Marape advocated to the Medical Society of PNG in September.
IPS UN Bureau Report

 

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