Humankind’s transformation of the Earth is embodied in the idea that we are living in the “Anthropocene”. Most people who have heard of this concept were probably unaware that it describes a specific unit of geological measurement - an epoch. A debate has been ongoing for more than a decade about whether to make that designation official - for the Anthropocene to take over from the Holocene epoch. This debate concluded just a few weeks ago with a definitive “no”. In this episode of The Case for Conservation Podcast renowned Anthropocene expert Erle Ellis explains what happened to the Anthropoc ..read more

Conservation and sustainability scientists are often expected to advise policymakers and other decision-makers. But some of the issues that they are expected to advise on, have broader consensus than others. So, when is it appropriate to advise? When is it appropriate to advocate? When should they simply present all the options or interpretations, and leave it to the decision-makers? Françoise Cardou is a plant and a community ecologist and postdoctoral fellow at Carlton University in Ottawa, interested in understanding how people and nature affect each other in socio-ecological systems. In a ..read more

Sustainability science, which includes conservation biology and various other environmental studies, is not a “hard science” like physics or mathematics. Nevertheless, one might expect it to be reasonably independent of political affiliation. But is this the case? If not, what is the problem with leaning too far in one political direction, especially if that direction is left and generally considered to be “pro environment”? If it is a problem, what can we do about it? Örjan Bodin is a sustainability scientist at the Stockholm Environment Institute, who has thought a lot about this topic and p ..read more

Capitalism gets a lot of negative press these days, and one of the main arguments against it is the environmental degradation with which it’s associated. But how much is capitalism itself responsible, and how much are people conflating it with associated phenomena? Are the realistic alternatives any better, or should our efforts be focused on reforming this system, which has already done so much for human flourishing? Russell Galt has many thoughts about the problems with capitalism, but he is also wary of how we go about changing the system. Russell is Head of Policy and Science at Earthwatch ..read more

As a result of our success as a species, we have been ushering other species toward extinction for thousands of years. The pace of those extinctions increased markedly with the growth of the world’s population since the Industrial Revolution. But we are now within reach of the “Jurassic Park” -type fantasy of being able to reverse extinctions - to bring back species from the dead. On the other hand, assuming we get beyond the remaining technological obstacles, de-extinction is still a very complex topic with conservation and ecological considerations that are not necessarily being considered b ..read more

Many conservation managers and scientists may not be aware that there is a single, common set of global biodiversity targets that inform national conservation strategy in almost every country in the world. These 23 targets are the main part of the “Kunming-Montreal Global Biodiversity Framework”, or GBF. The GBF was agreed on by Parties to the Convention on Biological Diversity (CBD) in late 2022, and the targets are meant to be achieved by 2030. This is a monumental task, considering that the multi-year strategy that preceded the GBF, which concluded in 2020, unfortunately failed to fully ach ..read more

This month’s episode is about activism and science communication, and whether or not they should be combined. There are obvious tensions here because science is meant to be as objective as possible, while activism is characteristically impulsive and political. And, of course, there can be activists on both sides of a debate. There can also be incomplete or poorly reported science, upon which that activism is based. On the other hand, could there be a role for scientists to guide activism, making it more rooted in fact, more strategic, and more appealing in its approach? Andrea Bandelli is a sc ..read more

Climate change gets a lot more attention and funding than biodiversity. But, as conservation organizations are keen to point out, climate and biodiversity are intimately linked and there is, therefore, a good argument for addressing them side by side. Part of that argument is that conserving biodiversity is good for the climate. But an even more obvious link is that climate affects biodiversity. Human beings can adapt rapidly to change through innovation. But nature adapts over evolutionary time, much slower than the predicted changes in climate. And yet the countless books that continue be pr ..read more

In decades past, conservation was notorious for ignoring other development goals. These days, its focus has expanded to consider those other goals, including the prevention of poverty and hunger. In fact, there seems to be a tendency to assume that conservation is always compatible with them, and necessary to achieve them. There is certainly truth in that, but are we talking enough about the inevitable trade-offs? And if everyone agrees that we should minimize trade-offs, why is the Green Revolution - one of the greatest “trade-off minimizers” in history often vilified by environmentalists?&nb ..read more

Species. We take them for granted as the main currency of biodiversity. But how many of us really know what species are? And do we attach too much importance to them, especially in the context of conservation? Over centuries, taxonomists have categorized and re-categorized life forms and graphically presented their relatedness in the form of a so-called ”tree of life”. The trunk of the tree is common to all life on Earth. It branches into major “taxa” like the “kingdoms” of plants, animals and fungi, and then continues branching into increasingly more specific taxa (phylum, class, order, fami ..read more