Mongabay Newscast

The Mediterranean Sea accounts for less than 1% of the world's ocean surface water, but it contains roughly 18% of global marine biodiversity. It is home to 150 million people along its coastline (roughly equivalent to Russia's population). And it sequesters 17.2 million metric tons of CO2 each year. Joining the Newscast this week to talk about the unique biodiversity of the Mediterranean Sea and its threats is journalist Manuela Callari.
Callari has written for Mongabay, highlighting the threats to purple sea urchins (Paracentrotus lividus) along the Italian coast. These marine invertebrates are crucial to the health of marine ecosystems, such as those in the Mediterranean, by helping regulate algal abundance and serving as food for predators. However, they are being overfished and even poached in marine protected areas due to demand for them as the primary ingredient in a popular tourist dish: spaghetti ai ricci di mare.
While the situation with urchins persists, Italy has been investing in an unprecedented effort to map its entire underwater coastline using deployed sensors to better understand the marine environment and manage conservation efforts. This is allowing them to identify where meadows of the seagrass Posidonia oceanica, which are "absolutely vital" to the Mediterranean ecosystem, persist, Callari says.
Overall, Callari says she wishes the rest of the world and tourists visiting the Mediterranean were more informed about the pressures the marine ecosystem faces.
"I grew up here, and now that I go back to certain places where I was as a child, and they are just completely different places to me. Places that were just nature and were difficult to access. Now they have very easy access on cars, buses. You can go on boat tours very easily. And I think we don't appreciate enough the impact that has on the environment. On the sea."
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Mike DiGirolamo is the host & producer for the Mongabay Newscast based in Sydney. Find him on LinkedIn and Bluesky.
Cover image: Satellite data from a study shows that the Mediterranean's average surface temperature has risen by 1.2°C (2.2°F) since the mid-1980s. Image by Katerina Katopis/Ocean Image Bank.
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Timecodes
(00:00) The Mediterranean is taken for granted
(07:09) Why is a tourist dish destroying marine ecosystems?
(18:49) Mapping the entire Italian coast
(28:19) Learning to appreciate the Mediterranean

Nearly three years ago, Newscast guest, author and journalist Ben Goldfarb discussed his book Crossings, which is about wildlife crossings and road ecology. Wildlife crossings help reconnect habitats fragmented by road networks, reducing collisions, helping protect threatened wildlife, and improving genetic diversity.
Since that conversation, Goldfarb has documented the growing popularity of wildlife crossings worldwide. He returns to the Newscast to detail how, where, and why wildlife crossings are becoming increasingly funded and built.
"Probably the biggest factor is that at this point, the evidence that wildlife crossing structures are effective is just overwhelming. Maybe 20 years ago, you could've theoretically said, 'Well … we don't necessarily know that …' but here in 2026, we just have a lot of scientific research basically showing that animals of all shapes and sizes use wildlife crossings," Goldfarb says.
He takes us to locations in South America, North America and Europe, where this particular type of infrastructure has rare nonpartisan political support. A bill is currently before the U.S. Congress to make the Wildlife Crossings Pilot Program permanent. Public surveys show overwhelming support for wildlife crossings in the United States. Goldfarb explains that the positive reception may also be due to the visual nature of one iteration of crossings, the highway overpass, which a source of his long ago described as "billboards for connectivity."
"I love wildlife crossings for … their ability to … just remind us that we're sort of global citizens of a planet that we share with wildlife."
Please take a minute to let us know what you think of our podcast here.
Mike DiGirolamo is the host & producer for the Mongabay Newscast based in Sydney. Find him on LinkedIn and Bluesky.
Cover image: The first wildlife bridge in Brazil connects habitat across the coastal four-lane BR-101 highway. Saving Nature's partners, DOB Ecology and the Golden Lion Tamarin Association, are reforesting a corridor to connect a protected area to the south and forest fragments to the north of the bridge. Image courtesy of Luis Paulo/Saving Nature.
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Timecodes
(00:00) Why are wildlife crossings having a moment?
(06:55) North America invests in more crossings
(16:25) 'Malicious restoration' & 'a bridge to nowhere'
(20:38) The most permeable highway on Earth
(25:17) Brazil's canopy bridges
(29:32) 'Billboards for connectivity'

A group of more than 40 researchers spent 20 months devising a plan for the world to achieve ecological sustainability within planetary boundaries, all while seeing incomes rise for 98% of the global population and reducing working hours for everybody by half to two and a half days a week. The plan to achieve this by 2100 is laid out in the recent "Global Justice Report."
If it sounds utopian, Lucas Chancel, the co-director of the World Inequality Lab and editor of the report, is the first person to acknowledge this, but explains why it's not only possible — there's even historical precedent for many of the measures the report outlines.
Achieving this plan rests on three pillars: decarbonization and the energy transition; a shift towards "sufficiency," defined here as the reduction of labor and production of superfluous products not needed for human survival; and a "drastic reduction in inequality of income, wealth and power."
"Basically, our plan is thought in a way that it can work with [an] incomplete coalition of actors," he says. "That is, you can start to implement it even though you don't have a global wealth tax. But our argument is that progressively, more and more countries [are] doing exactly these things."
Please take a minute to let us know what you think of our podcast here.
Mike DiGirolamo is the host & producer for the Mongabay Newscast based in Sydney. Find him on LinkedIn and Bluesky.
Cover image: Bay near Pulau Rayo, Raja Ampat, Indonesia. Image by Rhett A. Butler/Mongabay.
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Timecodes
(00:00) A habitable, equitable world is possible
(14:19) How we accomplish it
(30:56) Rebutting the arguments against it
(40:15) 98% of the world would see their income rise
(44:55) Gender equality is at the heart of it

Theonila Roka Matbob grew up next to what was — at the time — the world's largest open-pit mine in Bougainville, an autonomous island in Papua New Guinea, operated by a subsidiary of Rio Tinto. This mine wrought environmental and social devastation on the community of Panguna for decades. And many of these impacts carry on today, says Roka Matbob, who is an Indigenous Nasioi woman and politician.
With the help of Jubilee Australia and the Human Rights Law Centre, Roka Matbob was able to file a legal complaint with Australia's National Contact Point for Responsible Business Conduct. As a result, Rio Tinto signed a memorandum of understanding with the Bougainville government to remediate the impacts of this mine. For this legal achievement, Roka Matbob was awarded the Goldman Environmental Prize. However, she is skeptical that remediation for these impacts will occur.
She joins the podcast this week to tell the Bougainville story and what she wants people to understand about mining's impacts on the autonomous region and her community.
" The Bougainville story is a result of Australia's political decision through Papua New Guinea government now implemented on Bougainville and leaving behind a toxic legacy that is already been kind of fenced out, not to have a forum to talk about," she says. "So my intention is for us to start telling this story."
Please take a minute to let us know what you think of our podcast here.
Mike DiGirolamo is the host & producer for the Mongabay Newscast based in Sydney. Find him on LinkedIn and Bluesky.
Banner image: Theonila Roka Matbob in Papua New Guinea's Autonomous Region of Bougainville in January 2026. Photo by Goldman Environmental Prize.
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Timecodes
(00:00) The Bougainville story
(12:11) Seeking justice
(22:38) Cleaning up a 'toxic legacy'

Katharine Wilkinson has a Ph.D. in geography and the environment, is well known for being a co-author of the book Drawdown and co-founder of The All We Can Save Project. She joins the Newscast this week to discuss her latest book Climate Wayfinding: Healing Ourselves and the Planet We Call Home.
As a journalist, it's unhelpful for me to divorce myself from the topic of this interview, as I have experienced, time and again, the sense of "murky overwhelm" this book is specifically designed to address. But Wilkinson didn't just write this book for journalists like myself who cover ecological crises for a living. She wrote it for readers and listeners like you.
"I think we're all in our own ways grappling with this increasingly mapless time, right? And that is quite literally true," Wilkinson says. "'Is there hope?' and 'What can I do?' I think these are fundamentally navigational questions as much as they are questions of action."
What Climate Wayfinding does that I think is unique is it directly addresses the reader and takes them through a process of self-examination. Of sitting with the uncomfortable emotions one feels about our ecological crises, without judgment. And from that self-compassion, asking the reader to imagine the world they want to see instead and encouraging them to map out how they see themselves working to achieve it.
Please take a minute to let us know what you think of our podcast here.
Mike DiGirolamo is the host & producer for the Mongabay Newscast based in Sydney. Find him on LinkedIn and Bluesky.
Thumbnail image: Climate Wayfinding with a design background. Image by Amerpsand, courtesy of Katharine Wilkinson.
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Timecodes
(00:00) Facing our increasingly 'mapless' time
(09:43) Following our emotions
(15:07) "I don't feel hopeful today"
(18:22) Possibilities that become reality
(25:32) Culture as an accelerator for change
(35:17) A crisis of leadership
(41:40) To love something instead of fixing something