Mathis Wackernagel - Founder, President, Global Footprint Network - World Sustainability Award Winner

Mathis Wackernagel - Founder, President, Global Footprint Network - World Sustainability Award Winner

/

Founder & President of Global Footprint Network
Winner of the World Sustainability Award · IAIA Global Environment Award

So shooting for one planet just means you would be totally dominant, and leave no space for other species. Ecologists say to maintain 85% of preindustrial biodiversity, it would take about at least half the planet left on its own. That would mean getting to half-planet. And now we use at least 1.75. I say at least because our assessments with about 15,000 data points per country in a year are based on UN statistics, and their demand side is probably an underestimate because not all demands are included. And also on the supply side or the regeneration side, the UN is very production oriented, so it's the FAO numbers, for example, look at agricultural production, and the depletion side or the destruction side is not factored in adequately. So that's why it's an underestimate. And still, it shows we use about 1.75 Earths, and that's more than three times half an Earth. So that's kind of the difference. But we also know overshoot will end one way or another. The question is do we choose to end it? Do we choose it by design, or do we let nature take the lead and end overshoot by disaster? So it's really ending overshoot by design or disaster. That's the big choice we need to make.

Colin Steen - CEO of Legacy Agripartners - Pushing Farming Forward

Colin Steen - CEO of Legacy Agripartners - Pushing Farming Forward

/

CEO of Legacy Agripartners

It's interesting, as I've gotten older, I've really started to reflect back on that early time growing up on a farm. And I'm fiercely, fiercely proud of where my roots are. And Weldon, Saskatchewan, it's a town of 160 people there today. And just being in a spot where every day you have cattle to feed, you've got a grain crop you're trying to grow, right? The things are subject to weather. The sort of ups and downs of farm life are so dependent on the 6 pm news and the weather forecast each night. It's at times very stressful, but most times incredibly rewarding, right? There's nothing like sitting in a combine at harvest time with all the fruits of your labors all coming in at the same time. It's a great experience. We had cattle, which is just a never-ending thing, right? You know, our vacations were tied around going to cattle shows, cattle sales, bull sales, cow sales, anything that revolved around the farm. And we had a ton of fun on our vacations going to these events and seeing sites in those areas where we went to. But at the end of the day, you know, your life revolves around the cattle on the farm. It revolves around the farm. There's no sort of, we'll take four months off and not worry about it, right? Those cows have to be fed twice a day and looked after. So it's a lot of responsibility, and it's a great way to get yourself ready for life as an adult.

Walter Stahel - Architect, Economist, Founding Father of Circular Economy - Founder-Director, Product-Life Institute

Walter Stahel - Architect, Economist, Founding Father of Circular Economy - Founder-Director, Product-Life Institute

/

Founding Father of the Circular Economy · Founder-Director of Product-Life Institute
Author of The Circular Economy: A User’s Guide.

The circularity, of course, has existed in nature for a long time. Actually, nature's circularity is by evolution. There is no plan, there is no liability, and there are no preferences. It's simply the cycles such as marine tides, CO2, and water cycles, plants and animals, and basically by evolution, the best solution wins. Also, there is no waste. Dead material becomes food for other animals or plants. Now, early mankind survived by depending on these local natural resources sharing a non-monetary chaotic symbiosis dominated by nature, then poverty or necessity-based society changed when humankind used science to overcome shortages of everything. In other words, the Anthropocene. With nuclear energy, petrochemicals, metal alloys, we became independent from nature, but we overlooked the fact that these new manmade anthropogenic resources or synthetic resources were unknown to nature, so nature could not deal with them. And that means that we, humankind, has to take responsibility for it.

Jay Famiglietti - Hydrologist, Exec. Director - Global Institute for Water Security, Host of "What About Water?" Podcast

Jay Famiglietti - Hydrologist, Exec. Director - Global Institute for Water Security, Host of "What About Water?" Podcast

/

Hydrologist, Executive Director of the Global Institute for Water Security, U of Saskatchewan
Host of the Podcast What About Water?

I think water is taking a backseat and personally, I feel like water is the messenger that delivers the bad news of climate change to your front door. So in the work that I do, it's heavily intertwined, but it's taking a backseat. There are parts about water that are maybe separate from climate change, and that could be the quality discussions, the infrastructure discussions, although they are somewhat loosely related to climate change and they are impacted by climate change. That's sometimes part of the reason why it gets split off because it's thought of as maybe an infrastructure problem, but you know, the changing extremes, the aridification of the West, the increasing frequency, the increasing droughts, these broad global patterns that I've been talking about, that I've been looking at with my research – that's all climate change. Just 100% climate change, a hundred percent human-driven. And so it does need to be elevated in these climate change discussions.

Lex van Geen - Research Professor - Lamont-Doherty Earth Observatory, Columbia University

Lex van Geen - Research Professor - Lamont-Doherty Earth Observatory, Columbia University

/

Renowned Arsenic and Lead Specialist
Research Professor · Lamont-Doherty Earth Observatory · Columbia University

So this was maybe nine months after the fire in Notre Dame, and I had been struck visually by the fire, the yellow smoke, which is a telltale indicator of lead. The fact that 400 tons of lead constituted the covering of the roof of the cathedral. And a lot of that had volatilized, presumably, but no one really knew how much. So that got me thinking, and I happened to be in Paris at the time, so I thought if it's so much lead, could it be that it affected the population living within say a kilometer of the cathedral? I thought there wasn't really a lot of clear information about what had happened, and what had been measured. I thought some more openness and transparency was needed.