What is the Biodiversity Crisis?
Half of all species may face extinction by the end of this century. Here’s how we can save them.
There’s still time to stop one million of the planet’s plants and animals from vanishing forever — but not very much.
Scientists predict that on our current trajectory of habitat loss and global warming, between one third and one half of all species will face extinction by the end of this century. Their disappearance will upend ecosystems and destabilize human civilization.
To sustain the earth’s biodiversity, we’ll need new protections and better enforcement of the existing ones. We have about a decade to achieve urgent, transformative change.
Earthjustice is working on multiple fronts to give the earth’s species a fighting chance. Drew Caputo, Vice President of Litigation for Lands, Wildlife, and Oceans at Earthjustice, breaks down what’s causing species to die off, what it means for the planet, and how we can use the power of the law to save them.
Why is biodiversity loss a very bad thing for humans and the planet?
This biodiversity crisis has two pieces:
1. We’re losing species altogether.
2. Even species that aren’t at immediate risk of extinction are thinning out, and that imperils other species that depend on them. Scientists estimate that vertebrate species have declined by an average of 70% in the last half century.
Other species make the earth habitable for humans. Say there’s a species of insects that eats pests on our crops — if you destroy half the individuals of that species, you’ve got a whole lot less pest control going on.
There’s also the intrinsic value of non-human life. These are living beings that we have shared the planet with for millennia. They have just the same right to existence that we do. They are species that our parents and their parents stewarded and cared for, looked at in wonder, and enjoyed. Ours will be the first generation that failed in that stewardship duty.
Failing to protect all species is a planetary injustice, in addition to being potentially lethal.
What are the main drivers causing species die-off?
A lot of things that humans do.
1. The biggest driver is habitat destruction: humans transforming habitats for their own purposes. Resource-extractive industry practices, like clear-cutting trees, drilling for oil and gas, and mining, destroy habitats. Real-estate development in places that have been off limits before is also causing populations to drop.
2. The second driver is what scientists call overutilization: humans exploiting natural resources for mass consumption, faster than the earth can replenish them. That includes overharvesting plants for industrial agriculture, and overfishing. For example, humans sustainably caught fish for millennia without exceeding the ocean’s seafood supply; but with the advent of industrial fishing, humans started extracting more fish than the sea could provide, causing fish populations to crash.
3. The third driver is chemical pollution. This in particular is causing insect populations to collapse, which are critical for most of the ecosystem services on which we depend.
In the midst of all this, climate change is an ascending factor that is worsening the effects of all these drivers. As the planet warms, habitats become inhospitable — too hot, too dry. A species either needs to move habitat, which it may not be able to do (because the ground between their current home and the next livable place is being developed by humans), or it dies out.
An example of how all these factors combine is our case to protect salmon in the Columbia-Snake River ecosystems of the Pacific Northwest. Salmon require cool waters to survive, but the rivers are warming due to climate change. They need to access higher, cooler river habitat. There is habitat available in central Idaho — but they can’t get to it, because of the dams blocking the river system.
So now the salmon are dying, which affects all the other species that depend on them. That’s the type of migration that needs to happen to mitigate the effects of climate change, but human influences stop that from happening.
How is Earthjustice fighting to protect species and natural habitats?
We’re leading litigation against former President Trump’s attempt to lease our public lands to fossil fuel companies. We’ve filed and won a series of lawsuits that throw out hundreds of federal oil and gas leases that Trump tried to issue illegally — some of which contain essential habitats for imperiled species.
We have a long-term commitment to protecting ecosystems across the nation against anyone who might hurt them. If you’re a resource-extractive industry and you want to do something that might harm the Greater Yellowstone ecosystem in the Northern Rockies, or the Grand Canyon ecosystem in the Southwest, or the Tongass National Forest in Southeast Alaska, you’re going to have to deal with Earthjustice in court.
We’re also holding the government accountable to its duty to protect endangered species. We’re leading the fight to reverse Trump’s rollbacks to the Endangered Species Act, our most effective environmental law, and our litigation has helped restore protections to imperiled species that help hold entire ecosystems together, like the Yellowstone grizzly bear and the Northern Rockies gray wolf.
What steps has the Biden administration taken to address the biodiversity crisis?
On his first day in office, President Biden listed a series of bad actions Trump did to weaken animal protections and directed various agencies to review them.
These reviews are a first step toward undoing the previous administration’s blunders, including its rollbacks to the Endangered Species Act. It’s intellectually bankrupt to weaken protections for the weakest species in the middle of an ascending biodiversity crisis.
Biden also instituted a moratorium on oil and gas leasing in federal land and waters. Given the adverse effects of fossil fuel extraction on species’ habitats, this is a really significant step.
In a broader effort to take action on the biodiversity crisis, the administration is aiming to protect 30% of U.S. lands and water by 2030. This “30x30” goal recognizes the scale and urgency of the biodiversity crisis.
What solutions does 30x30 offer?
You can’t protect species without protecting their homes. The 30x30 concept is a science-based initiative that rewrites how humans conserve and enjoy nature. The initiative proposed in Congress includes:
Working with local and Tribal governments to stop habitat destruction
Improving access to nature for all people
Incentivizing private landowners to protect core habitat areas
Restoring degraded ecosystems
Earthjustice supports the spirit of 30x30 in the courts by defending wilderness areas from mining companies or state agencies that want to harm wildlife for private gain.
We also advocate for the protection of new wilderness areas, like the 58 million acres of national forests protected from logging under the Roadless Rule, and then defend those protections in court.
What can I do?
Dams on the Snake River in the Pacific Northwest are pushing salmon to the brink of extinction. Earthjustice has been working for decades to restore what used to be one of the most prolific salmon runs in the world, but we’re running out of time. Call on Congress to act to prevent Snake River salmon from going extinct.