‘They saw bigger things’: Richard Leakey, Edward O Wilson and Thomas Lovejoy remembered

Friends and colleagues pay tribute after the recent deaths of these groundbreaking naturalists, who shifted our understanding of the world and our future

Over Christmas and the new year, three of the world’s leading naturalists died. Thomas Lovejoy, a conservation biologist credited with popularising the term “biodiversity” and a passionate defender of the Amazon, died on 25 December. A day later, Edward O Wilson, known to many as the “modern-day Darwin”, died in Burlington, Massachusetts. On 2 January, Richard Leakey, a world-renowned Kenyan conservationist who helped establish Africa as the birthplace of humankind, died at his home in Nairobi.

From presidents to undergraduate students, thousands have paid tribute to the three men, whose achievements range from developing theories on forest and island ecosystems to reforming the Kenyan civil service and devising proposals to protect half the planet for nature. Alongside grand accomplishments, which were sometimes controversial, their passing has been a chance to reflect on the small and the mundane: fleeting interactions that inspired careers, kind words that propelled research projects, and generosity of spirit that has helped amplify the voices of those that practise and produce science.

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Rocky road: Paraguay’s new Chaco highway threatens rare forest and last of the Ayoreo people

Forced from their homes by missionaries, the Ayoreo cling on in the Chaco. Now the Bioceanic Corridor cuts through the fastest-vanishing forest on Earth, refuge of some of the Americas’ last hunter-gatherers

In 1972, Catholic missionaries entered the Chaco forest of northern Paraguay and forced Oscar Pisoraja’s family, and their nomadic Ayoreo people, to leave with them. Many perished from thirst on the long march south. Settled near the village of Carmelo Peralta on the Paraguay River, dozens more died from illnesses. Still, the survivors kept up some traditions – hunting for armadillos; weaving satchels from the spiky caraguatá plant. “We felt part of this place,” says Pisoraja, now 51.

Today, his community – and other indigenous peoples across the Chaco, a tapestry of swamp, savanna and thorny forest across four countries that is South America’s largest ecosystem after the Amazon – are confronting a dramatic new change.

Mario Abdo Benítez, Paraguay’s president, and Reinaldo Azambuja Silva, governor of Mato Grosso do Sul state in Brazil, at the site of a new bridge across the Paraguay River, due to be completed in 2024

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‘We can transition to a better country’: a trans Colombian on diversity in ecology and society

Brigitte Baptiste has a high profile as a transgender Colombian woman and an ecologist – in a country where both are targeted

When Brigitte Baptiste walks on to the 10th floor of Bogotá’s Ean University at 9.45am in a plunging dress, knee-high cheetah-print boots and a silvery wig, the office comes to life. She examines some flowers sent by the Colombian radio station Caracol to thank her for taking part in a forum, her co-worker compliments her on her lipstick, and she settles in for a day of back-to-back meetings, followed by a private virtual conversation with the UN secretary general, António Guterres. Later that evening, she flies to Cartagena for a conference on natural gas.

The 58-year-old ecologist is one of Colombia’s foremost environmental experts, and one of its most visible transgender people, challenging scientific and social conventions alike. An ecology professor at the Jesuit-run Javeriana University for 20 years, she has written 15 books, countless newspaper columns, and won international prizes for her work. Most recently, she was appointed chancellor of Ean University, a business school, as part of its push for greater sustainability.

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Deforestation making outdoor work unsafe for millions, says study

Rise in temperatures and humidity linked to forest loss has reduced safe hours for working in the tropics

Deforestation has made outdoor work unsafe for millions of people in the tropics over the past 15 years, a study has found.

The rise in temperatures and humidity caused by tree loss has reduced the number of safe hours in the day for people to work, especially for those performing heavy labour.

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Tropical forests can regenerate in just 20 years without human interference

Study finds natural regrowth yields better results than human plantings and offers hope for climate recovery

Tropical forests can bounce back with surprising rapidity, a new study published today suggests.

An international group of researchers has found that tropical forests have the potential to almost fully regrow if they are left untouched by humans for about 20 years. This is due to a multidimensional mechanism whereby old forest flora and fauna help a new generation of forest grow – a natural process known as “secondary succession”.

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Blowing the house down: life on the frontline of extreme weather in the Gambia

A storm took the roof off Binta Bah’s house before torrential rain destroyed her family’s belongings, as poverty combines with the climate crisis to wreak havoc on Africa’s smallest mainland country

The windstorm arrived in Jalambang late in the evening, when Binta Bah and her family were enjoying the evening cool outside. “But when we first heard the wind, the kids started to run and go in the house,” she says.

First they went in one room but the roof – a sheet of corrugated iron fixed only by a timbere pole – flew off. They ran into another but the roof soon went there too.

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Deforestation in Brazil’s Amazon at highest level since 2006

Increase comes despite Jair Bolsonaro’s efforts to show his government is taking environmental preservation seriously

Deforestation in Brazil‘s Amazon rainforest soared 22% in the past year to the highest level since 2006, the government’s annual report has shown, undercutting president Jair Bolsonaro’s assurances that the country is curbing illegal logging.

Brazil‘s space research agency, INPE, recorded 13,235sq km (5,110 square miles) of deforestation in the world’s largest rainforest in satellite data, the report showed on Thursday, an area nearly 17 times the size of New York City. The official deforestation data covers a period from August 2020 through to July 2021.

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Revealed: the places humanity must not destroy to avoid climate chaos

Tiny proportion of world’s land surface hosts carbon-rich forests and peatlands that would not recover before 2050 if lost

Detailed new mapping has pinpointed the carbon-rich forests and peatlands that humanity cannot afford to destroy if climate catastrophe is to be avoided.

The vast forests and peatlands of Russia, Canada and the US are vital, researchers found, as are tropical forests in the Amazon, Congo and south-east Asia. Peat bogs in the UK and mangrove swamps and eucalyptus forests in Australia are also on the list.

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Brazil’s Amazon beef plan will ‘legalise deforestation’ say critics

The beef industry hopes a planned deforestation-free farming zone will tempt buyers back but many fear it will drive up illegal tree felling

For many, the overriding image of agriculture in the Amazon is one of environmental destruction. About 80% of deforestation in the region has been attributed to cattle ranching, tainting beef exports.

Brazil’s beef industry hopes to tempt buyers back to the Amazon region, which covers about 40% of the country’s total area, with a new deforestation-free pledge. But critics are concerned it could effectively legalise deforestation in the region.

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Transform approach to Amazon or it will not survive, warns major report

Panel of 200 scientists tells Cop26 Indigenous people, business, governments and scientists must collaborate

The world’s approach to the Amazon rainforest must be transformed to avoid an irreversible, catastrophic tipping point, according to the most comprehensive study of the region ever carried out.

More than 200 scientists collaborated on the new report, which finds that more than a third of the world’s biggest tropical forest is degraded or deforested, rainfall is declining and dry seasons are growing longer.

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Armed attack on Brazilian Amazon community while delegate at Cop26

Witnesses say tents in forest in disputed area of Pará state set alight and residents beaten

A land defender from Pará, in the Brazilian Amazon, said armed men attacked a forest community she defends while she was at the Cop26 talks in Glasgow.

Claudelice Silva dos Santos, a Cop26 delegate and nominee for the 2019 Sakharov prize, said she had received a phone call sounding the alarm after about 30 pickup trucks arrived at the São Vinicius camp at the Tinelli farm in Nova Ixipuna, home to about 80 families, at about 3pm local time on 3 November.

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Indonesia says Cop26 zero-deforestation pledge it signed ‘unfair’

Environment minister of country home to world’s third-biggest rainforest says deforestation pledge must not halt development

Indonesia has questioned the terms of a Cop26 deal to end deforestation by 2030, days after joining more than 100 countries in signing up to it.

The nations agreed on the multi-billion-dollar plan at the climate conference in Glasgow this week to stop cutting down trees on an industrial scale in under a decade.

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Eco-friendly, lab-grown coffee is on the way, but it comes with a catch

Beanless brews can cut deforestation and greenhouse gas emissions dramatically – but what will happen to workers in traditional coffee-growing regions?

Heiko Rischer isn’t quite sure how to describe the taste of lab-grown coffee. This summer he sampled one of the first batches in the world produced from cell cultures rather than coffee beans.

“To describe it is difficult but, for me, it was in between a coffee and a black tea,” said Rischer, head of plant biotechnology at the VTT Technical Research Centre of Finland, which developed the coffee. “It depends really on the roasting grade, and this was a bit of a lighter roast, so it had a little bit more of a tea-like sensation.”

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Leaked EU anti-deforestation law omits fragile grasslands and wetlands

Campaigners say draft regulation contains many loopholes, including exclusion of Cerrado and Pantanal

The fragile Cerrado grasslands and the Pantanal wetlands, both under threat from soy and beef exploitation, have been excluded from a European Union draft anti-deforestation law, campaigners have said, and there are many other concerning loopholes.

The European Commission has pledged to introduce a law aimed at preventing beef, palm oil and other products linked to deforestation from being sold in the EU single market of 450 million consumers. But campaigners said a leaked impact assessment reveals “significant omissions” in the plans, including the exclusion of endangered grasslands and wetlands, as well as products that raise environmental concerns, such as rubber and maize.

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‘I’ve never said we should plant a trillion trees’: what ecopreneur Thomas Crowther did next

The ecologist admits ‘messing up’ in the past, but says his Restor project will be ‘a Google Maps of biodiversity’, showing the impact of restoration – from a forest to your own back garden

Listen to our podcast: Can we really solve the climate crisis by planting trees? – part one

Thomas Crowther understands more than most the danger of simple, optimistic messages about combating the climate crisis. In July 2019, the British ecologist co-authored a study estimating that Earth had space for an extra trillion trees on land not used for agriculture or settlement. Its implications were intoxicatingly hopeful. By restoring forests in an area roughly the size of China, the press release accompanying the paper suggested two-thirds of all emissions from human activities still present in the atmosphere could be removed.

The study, led by Jean-François Bastin, a postdoctoral researcher at Crowther’s lab in ETH Zürich, Switzerland, was the second most featured climate paper in the media in 2019, according to one analysis. It inspired the World Economic Forum’s (WEF) One Trillion Trees Initiative, launched last year after Salesforce billionaire Marc Benioff read the paper on the recommendation of Al Gore, the former US vice-president. The Time magazine owner told everyone he could about the research: chief executives, friends and world leaders, even convincing climate sceptic Donald Trump to back the WEF initiative with a multibillion tree commitment.

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‘Everything is changing’: the struggle for food as Malawi’s Lake Chilwa shrinks

The livelihoods of 1.5 million people are at risk as the lake’s occasional dry spells occur ever more frequently

• All photographs by Dennis Lupenga/WaterAid

There was a time when the vast Lake Chilwa almost disappeared. In 2012 it had been extremely hot in southern Malawi, with little rain to fill the rivers that ran into the lake.

“Many fishermen were forced to scramble for land near the lake banks, while others had to migrate to the city,” says Alfred Samuel. “We could barely feed our children because the lake could not provide enough fish, or water for rice growing.”

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Deforestation in Brazilian Amazon hits highest annual level in a decade

Rainforest lost 10,476 sq km between August 2020 and July 2021, report says, despite increasing global concern

Deforestation in the Brazilian Amazon has hit the highest annual level in a decade, a new report has shown, despite increasing global concern over the accelerating devastation since President Jair Bolsonaro took office in 2019.

Between August 2020 and July 2021, the rainforest lost 10.476 square kilometers – an area nearly seven times bigger than greater London and 13 times the size of New York City, according to data released by Imazon, a Brazilian research institute that has been tracking the Amazon deforestation since 2008. The figure is 57% higher than in the previous year and is the worst since 2012.

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‘Best a human can be’: indigenous Amazonian Karapiru dies of Covid

Karapiru Awá Guajá, among the last of the hunter-gatherer Awá tribe, survived a massacre and a decade alone in the forest, inspiring others with his resilience and ‘extraordinary warmth’

He survived a massacre that killed most of his family in the Brazilian Amazon and lived for 10 years alone in the forest, but Karapiru Awá Guajá could not escape the pandemic.

Karapiru, one of the last of the hunter-gatherer nomadic Awá of Maranhão state, died of Covid-19 earlier this month. With only 300 Awá thought to remain, they have been called the “earth’s most threatened tribe”.

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Amazon rainforest now emitting more CO2 than it absorbs

Cutting emissions more urgent than ever, say scientists, with forest producing more than a billion tonnes of carbon dioxide a year

The Amazon rainforest is now emitting more carbon dioxide than it is able to absorb, scientists have confirmed for the first time.

The emissions amount to a billion tonnes of carbon dioxide a year, according to a study. The giant forest had previously been a carbon sink, absorbing the emissions driving the climate crisis, but is now causing its acceleration, researchers said.

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Amazônia: life and death in the Brazilian rainforest

The 10th edition of the Carmignac photojournalism award was dedicated to the Amazon and the issues related to its deforestation. Photojournalist Tommaso Protti, accompanied by journalist Sam Cowie, travelled thousands of miles across the Brazilian Amazon. From the eastern region of Maranhão to the western region of Rondônia, through the states of Pará and Amazonas, they portrayed modern-day life in the Brazilian Amazon, where social and humanitarian crises overlap with destruction of the rainforest.

As I sat in my hotel room in Marabá, a city in the Amazon state of Pará, Jornal Nacional – Brazil’s flagship news programme – transmitted images of the country’s newly elected president, Jair Bolsonaro. “The Indigenous in their reservations are like animals in a zoo,” he said. It was November 2018.

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