Clemente Álvarez

Rewilding Europe chose a territory with a population density as low as Mongolia’s for Iberian Highlands, where they hope to introduce a supersized breed of cattle based on the extinct Aurochs

The fascinating world of arthropods is shrinking, but it’s still so large that little is known about many species, and some have yet to be identified

The most radical current of thought posits that transitioning to renewable energy is unfeasible and argues that the only way to avoid disaster is to reduce consumption drastically. But some environmentalists warn about the dangers of this view

While the geopolitical situation hinders progress on the fight to contain global warming, the extreme temperatures that Europe and the US are experiencing show its rapid advance

Sofía Heinonen, head of the Rewilding Argentina Foundation, says it took 15 years to get people to support the comeback of the largest land predator on the continent

Marine biologist Enric Sala explains that predators are key to the functioning of the ecosystems that provide so many services to humans

The government is calling on developers to withdraw ‘contentious’ plans that are unlikely to be approved in order to ease the backlog that is affecting the authorization of new projects

Years of legal fights against untrammeled development have left a trail of half-built structures and establishments that are operating without a license

A project spanning 39 years and 255 authors has found that 22% of species in the Iberian peninsula do not grow anywhere else in the world

A citizen-driven bill that aims to protect the largest saltwater lagoon in Europe needs to secure 276,000 more signatures before October 28 if is to be considered by parliament

The health crisis is having an unexpected effect in some urban centers: motorists are losing space while cyclists are gaining it. EL PAÍS has examined how Spanish cities, as well as some in Europe and the Americas, are adapting their cycleways to the new mobility reality

Known for his climbing feats, the elite athlete has started a foundation to protect mountain environments and pledged to restrict his own travel to reduce his carbon footprint

A saline lagoon in Spain’s southeastern region of Murcia has become a symbol of how a lack of respect for the environment can backfire. This popular spot made global headlines in October when thousands of dead fish washed up on shore. EL PAÍS traveled to what was once an idyllic spot to find out how things got this bad