By Kizito Makoye
DAR ES SALAAM, Tanzania, Jul 23 2026 – Every morning, as the Indian Ocean retreats from the reef off Zanzibar’s Jambiani village, Chiku Chande steps into the knee-deep lagoon carrying bundles of seaweed seedlings. Years of farming these waters have taught her about every channel and coral outcrop. But lately, the corals that once glowed in brown and gold have become chalky white.

“You don’t need anyone to tell you these changes,” Chande tells IPS. “We see it with our own eyes. The coral has lost its colour.”

Like many families in Jambiani, the 48-year-old grandmother depends on the reef. It shelters her seaweed farm from crashing Indian Ocean waves, supports fish stocks and brings tourists to the village. As the corals bleach and slowly die, she worries about the future.

Chande has watched the reef change year after year. Scientists say her observations mirror what is happening across the world’s tropical oceans.

Scientists long regarded El Niño – the natural warming of parts of the Pacific Ocean that disrupts weather patterns globally – as the main driver of mass coral bleaching

A new study led by Climate Central and published in Oceanography concludes that human-induced climate change has driven every global coral bleaching event over the past four decades. The researchers found greenhouse gas emissions have warmed the oceans so much that El Niño now acts mainly as a trigger rather than the root cause.

“Our study shows that without climate change, coral bleaching would be a rare and isolated event, and global mass coral bleaching simply would not occur,” says Andrew Pershing, Climate Central’s chief programme officer and the study’s lead author.

2026-2027 projected bleaching risk map. A report published in Oceanography argues that nearly every global coral bleaching event over the past 40 years would not have occurred
without human-caused climate change. Credit: Oceanography

Corals bleach when unusually warm water forces them to expel the microscopic algae that provide most of their food and give them their vibrant colours. If temperatures quickly return to normal, corals can recover. But prolonged heat starves them and can kill entire reef ecosystems.

To determine how much of that warming came from human activity, researchers compared today’s sea surface temperatures with computer simulations of a world unaffected by greenhouse gas emissions. They then assessed whether bleaching would still have occurred under those cooler conditions.

Their analysis showed that every global bleaching event since 1998 – including those in 1998, 2010, 2014-2017 and the ongoing event that began in 2023 – required human-caused warming to push ocean temperatures beyond bleaching thresholds. Although El Niño coincided with many of those events, the study found they would not have become global bleaching episodes without decades of warming driven by fossil fuel emissions.

Women seaweed farmers in Zanzibar’s Jambiani village receive guidance while tending seaweed farms in the shallow lagoon, where warming seas have also left nearby coral reefs increasingly bleached. Scientists say human-caused climate change, rather than natural climate cycles, has driven every global mass coral bleaching event on record. Credit: Muhidin Michuzi

The findings have particular implications for Tanzania.

The country’s 1,400-kilometre coastline, which includes the reefs surrounding Zanzibar, Pemba and Mafia islands, supports fisheries, tourism and thousands of coastal livelihoods. Healthy reefs also protect beaches and coastal settlements by absorbing up to 97 percent of incoming wave energy, reducing erosion and storm damage.

As reefs deteriorate, fish populations decline, tourism suffers and coastlines become increasingly vulnerable to flooding and erosion.

Similar pressures are happening across tropical reefs worldwide. Although coral reefs cover less than one percent of the ocean floor, they support roughly a quarter of all marine species and generate an estimated US$2.7 trillion annually in ecosystem services through fisheries, tourism and coastal protection. The Global Coral Reef Monitoring Network estimates the world lost about 14 percent of its coral between 2009 and 2018 as repeated marine heatwaves left reefs too little time to recover.

Recent ocean temperature records suggest the pressure is intensifying.

According to the Copernicus Marine Service, June 2026 was the warmest June on record for global sea surface temperatures, while marine heatwaves covered about 82 percent of the world’s oceans by the end of the month. Because the oceans absorb more than 90 percent of the excess heat trapped by greenhouse gases, marine heatwaves are becoming more frequent and severe, increasing the likelihood of coral bleaching.

The Climate Central researchers project that by 2028 human-caused warming will outweigh El Niño’s influence in every coral reef region worldwide. Bleaching, they say, will increasingly reflect persistently warmer oceans rather than unusually strong natural climate cycles.

Using the same attribution methods, the researchers also assessed bleaching risk during the developing 2026-2027 El Niño. They found that while the climate pattern could still trigger bleaching in some regions, human-caused warming would account for most of the risk, particularly in the southern Caribbean, the Pacific coasts of Central and South America, and parts of East and Southeast Asia.

Globally, the monthly average sea-surface temperature for the extra-polar ocean (60°S–60°N) was the highest for June, exceeding the previous record set in June 2024 by just 0.01ºC. This partly reflected the development of strong El Niño conditions in the equatorial Pacific, according to the Copernicus Climate Change Service. Credit: ECMWF/Copernicus Climate Change Service

The study challenges the long-held assumption that bleaching is mainly a response to natural climate cycles. Researchers say bleaching can no longer be viewed as an occasional event linked to natural climate cycles; scientists say it is increasingly becoming a recurring consequence of steadily warming oceans.

“By isolating the effect of climate change, our study shows that the fate of reefs is closely tied to how much carbon pollution goes into the atmosphere. Protecting reefs from overfishing and pollution is very important. We need as many thriving reef areas as possible. Even during severe events, there are often pockets of coral that persist. These areas can be the source for recovery in the short and long term,” Pershing tells IPS

The Intergovernmental Panel on Climate Change warns that even if global warming is limited to 1.5 degrees Celsius above pre-industrial levels, up to 90 percent of the world’s coral reefs could disappear by mid-century. At 2 degrees Celsius of warming, losses could reach 99 percent.

Chande does not speak in terms of climate attribution. She only knows the reef looks different from when she began farming seaweed. Researchers say the bleaching she has witnessed reflects a much deeper shift: oceans that have steadily warmed over decades because of greenhouse gas emissions.

“When I was younger, the corals were full of colour and fish,” she said. “Now everything looks white. I worry about what is happening to the sea,” she says.

IPS UN Bureau Report

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By Máximo Torero
ROME, Jul 23 2026 – Hunger is falling across most of Latin America and the Caribbean. The region’s next challenge is harder: ensuring that everyone can afford a healthy diet, not merely enough calories to survive.

The regional hunger rate fell for a fifth consecutive year in 2025, reaching a record low of 4.8 percent, down from the pandemic peak of 6.1 percent in 2020. About 32 million people faced hunger, more than 1 million fewer than in 2024 and 7.5 million fewer than in 2020. Moderate or severe food insecurity, which includes people forced to skip meals or eat less, also fell to 22.9 percent, below its 2015 level of 23.4 percent. The region’s share of the world’s hungry has remained at about 5 percent for 15 years.

This progress was not accidental. It reflects sustained investment in agricultural productivity and stronger social protection, including the cash transfer and school feeding programs developed by Brazil and Mexico.

Poor roads, limited rail networks, inadequate cold storage, unreliable energy, inefficient markets and post harvest losses raise costs as nutritious food moves through storage, processing, transportation, wholesale and retail

The countries recording the largest gains differ greatly, but their policies reveal a consistent pattern. Brazil, Chile, Costa Rica, the Dominican Republic, Guyana and Uruguay have reduced hunger below 2.5 percent, the level below which the Food and Agriculture Organization of the United Nations reports the estimate simply as “less than 2.5 percent.” Since the mid 2000s, Peru has cut its rate from 17.9 to 5.7 percent; Bolivia, from 27.6 to 19.5 percent; Colombia, from 11.0 to 4.1 percent; and Panama, from 14.8 to 4.7 percent.

These findings, from the 2026 edition of The State of Food Security and Nutrition in the World, show that hunger falls when agricultural, economic and social policies reinforce one another. Social protection preserves purchasing power. Agricultural investment raises productivity. Rural infrastructure connects farmers to markets. School meals and cash transfers protect vulnerable families while creating demand for locally produced food.

The gains, however, remain fragile and uneven.

The 2026 Middle East crisis poses a less uniform threat here than in Africa or Asia. Latin America and the Caribbean produces more crude oil than it consumes, and some energy exporters could benefit from higher prices. But this regional average conceals the exposure of many Central American and Caribbean economies that depend heavily on imported fuels and remain vulnerable to rising energy, fertilizer, transportation and food import costs. The crisis will create winners and losers within the region, not leave it untouched.

The sharpest divide is in the Caribbean. Its hunger rate edged up to 16.6 percent in 2025, nearly five times the rate in South America, while moderate or severe food insecurity reached 52 percent, the highest of any subregion.

Haiti is the most extreme case. Its hunger rate rose from 47.7 to 51.4 percent, and more than half the population faces acute food insecurity. Haiti is the only country in the Americas, and one of five globally, where people face catastrophic levels of hunger. Armed violence, institutional breakdown, economic decline and climate shocks are erasing years of development, even without a formally declared war.

But hunger captures only one dimension of deprivation. The cost of a healthy diet reveals a larger structural problem.

Latin America and the Caribbean has the world’s most expensive healthy diet. In 2025, it cost an average of 4.91 purchasing power parity dollars per person per day, compared with 4.35 in Africa, 4.33 in Asia and 3.64 in Northern America and Europe. In the Caribbean, the cost reached 6.04 purchasing power parity dollars, the highest of any subregion, compared with 4.66 in Central America.

Because regional incomes are higher on average, the share of people unable to afford a healthy diet, 25.7 percent, remains far below Africa’s 66.1 percent and has been declining since 2021. But averages again conceal severe deprivation. In Haiti, 88.9 percent of people cannot afford a healthy diet.

Latin America and the Caribbean has therefore made genuine progress against calorie deprivation. But sufficient calories are no longer its only, or even its largest, food challenge. A diet that prevents hunger does not necessarily prevent anaemia, child stunting, obesity, diabetes and other forms of malnutrition. A healthy diet requires adequate fruits, vegetables and animal source foods, yet that diet costs more here than anywhere else.

The region’s high diet costs are driven particularly by vegetables and by what happens after food leaves the farm. Poor roads, limited rail networks, inadequate cold storage, unreliable energy, inefficient markets and post harvest losses raise costs as nutritious food moves through storage, processing, transportation, wholesale and retail. This is not simply a production problem. It is a midstream problem.

The policy response must therefore be more precise than simply spending more on agriculture. Broad farm subsidies will not repair broken supply chains. Governments should invest in horticultural productivity, rural roads, rail connections, cold chains, storage, packhouses, reliable energy, wholesale markets and competitive transportation. These investments would reduce losses, expand supply and lower the price of fruits, vegetables and other nutrient rich foods.

Sequencing also matters. Expanding school meals, cash transfers or food vouchers before supply can respond may raise local prices and exclude the consumers these programs are intended to support. Investment in production and supply chains must precede, or at least accompany, measures that stimulate demand.

A decade ago, Brazil, Peru, the Dominican Republic and Colombia might have appeared to be unrelated success stories. We now know that their gains came from deliberate investments in social protection and agricultural productivity.

Making healthy diets affordable will require the same determination, directed this time toward the infrastructure, logistics and markets that move nutritious food to consumers. The immediate priority is to extend the region’s progress to the Caribbean and, most urgently, to Haiti.

Latin America and the Caribbean has shown that hunger can fall. It must now prove that a healthy diet need not remain a privilege.

Excerpt:

Máximo Torero is the Chief Economist of the Food and Agriculture Organization of the United Nations

By Alon Ben-Meir
NEW YORK, Jul 23 2026 – Under a new rule proposed by the Department of Homeland Security, the duration of “I visas” for foreign media will be slashed from renewable multi year periods—often up to five years—to a maximum of 240 days, and just 90 days for Chinese journalists. Renewals would no longer be a routine administrative step tied to continued employment and compliance with the law, but a discretionary privilege the government can grant or withhold at will.

Turning Journalist Visas into a Weapon

The Foreign Press Association and other media organizations have warned that such a regime will make it “impossible” for correspondents to do their jobs: they cannot build sources, understand the country’s complex politics, or maintain anything resembling a family life if their legal status expires every few months and is constantly subject to political whim. The Association of Foreign Press Correspondents in the United States rightly calls this a “flagrant attack on press freedom” designed to chill coverage by making unfavorable reporting a potential visa liability.

An Assault on the Spirit of the First Amendment

Formally, the First Amendment binds Congress, not consular officers or immigration regulators. But in substance, the proposed rule is a direct affront to the First Amendment’s core principle: that a free press must be able to scrutinize those in power without fear of retaliation.

By conditioning a journalist’s ability to live and work in the United States on repeated, discretionary renewals, the administration is creating precisely the climate of self censorship that the First Amendment was meant to prevent. If a reporter knows that a critical story about the president or his allies might translate into a denied extension, the line between immigration policy and political reprisal evaporates.

This is not a hypothetical danger. The rule expressly allows the government to scrutinize the “content” a journalist is covering when deciding whether to grant an extension, opening the door to ideological filtering of who gets to report from the United States. That logic is indistinguishable from the methods long used by authoritarian regimes that the United States has historically condemned.

A Tool for Selective Punishment

The proposal also creates a ready made instrument for selective punishment of journalists from countries with which the Trump administration has tense or adversarial relations. The singling out of Chinese journalists for especially harsh 90 day limits is an explicit signal that Washington is prepared to wield visa policy as a geopolitical stick, not a neutral administrative tool.

Once this precedent is established, nothing prevents the administration from tightening the screw further on reporters from other states whose governments it wishes to pressure—or punish. The result would be a two tiered press landscape in which journalists from favored countries enjoy relative stability, while those from disfavored states face constant uncertainty and the implicit demand to “behave.”

Collateral Damage to US Society and Industry

The damage, however, would not be confined to newsrooms. International coverage of the United States is a critical artery for sectors that depend on global visibility and confidence, including finance, higher education, entertainment, sports, tourism, and cultural institutions. If it becomes prohibitively expensive or logistically impossible for foreign outlets to station correspondents in the US for more than a few months, many will simply relocate their hubs elsewhere.

That relocation carries a cost: fewer nuanced stories about American democracy, markets, universities, and culture, and more reliance on second hand or adversarial narratives. For a country that still claims leadership of a “free world,” deliberately undermining the global visibility of its own society is more than self defeating; it is profoundly hypocritical.

Undermining Treaty Commitments and Global Standing

There is an additional, often overlooked dimension: these restrictions risk clashing with US obligations under the UN Headquarters Agreement and related arrangements governing access for foreign journalists covering the United Nations. New York is not only an American city; it is the seat of an international organization whose work depends on open media access from all member states.

For decades, Washington has rightly insisted that host states of international institutions must guarantee access to the press and avoid politicizing visas. If the United States itself begins to weaponize journalist visas, it hands every authoritarian government a ready made excuse to do the same, eroding what remains of an already fragile global norm.

What Must Be Done

This proposal is not inevitable. It is a regulatory measure that can be challenged, delayed, and ultimately defeated through a combination of legal action, congressional oversight, diplomatic pressure, and public mobilization. Media organizations, civil liberties groups, universities, and US industries that depend on international coverage should submit formal complaints, petition Congress to block implementation, and prepare litigation arguing that the rule is arbitrary, discriminatory, and incompatible with the constitutional protection of a free press.

Foreign governments and international bodies, including the UN, should make it clear that undermining foreign press access in the United States will invite reciprocal restrictions on American journalists abroad—further isolating US audiences from the world. And American citizens, who ultimately bear the cost of an information starved public sphere, must insist that their government not abuse immigration law as a backdoor censorship tool.

It is no accident that Trump, who is openly hostile to independent media, now seeks to transform visas into levers of control over who may report on it. If this rule stands, it will not only harm thousands of foreign journalists and their families; it will further entrench a creeping authoritarianism in America that fears scrutiny above all else, and that is precisely why it must be stopped.

Dr Alon Ben-Meir is President, Institute for Humanitarian Conflict Resolution

IPS UN Bureau

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Excerpt:

For nearly a century, foreign correspondents have come to the United States precisely because this country prided itself on welcoming scrutiny. Now, the Trump administration proposes to turn that legacy on its head—by transforming visas for international journalists into instruments of control