Located in a global hotspot for biodiversity, Los Angeles County is home to more than 4,000 distinct species of plants and animals, including 52 endangered species - more than any county outside of Hawaii. And with 1 million animal and plant species facing extinction due to human activity, according to the United Nations, efforts to better understand the factors that shape biodiversity in Los Angeles could help shape global conservation efforts.

Water scarcity, a socio-environmental threat to anthropogenic activities and ecosystems alike, affects large regions of the globe. However, it is often the most vulnerable and disadvantaged populations that suffer the severest consequences, highlighting the role of economic and institutional factors in water scarcity. In this way, researchers generally consider not only the physical constraints but socio-economic determinants as well.

In a ground breaking study, an international team of 21 scientists led by Sean Hoban, Ph.D., Conservation Biologist at The Morton Arboretum in Lisle, Illinois, evaluated five genera spanning the plant tree of life (Hibiscus, Magnolia, Pseudophoenix, Quercus and Zamia) to understand how much genetic diversity currently exists in collections in botanical gardens and arboreta worldwide.

A new way of looking at marine evolution over the past 540 million years has shown that levels of biodiversity in our oceans have remained fairly constant, rather than increasing continuously over the last 200 million years, as scientists previously thought.

Rampant deforestation, uncontrolled expansion of agriculture, infrastructure development and exploitation of wild species have created a 'perfect storm' for the spillover of diseases from wildlife to people.

Jiuzhaigou National Nature Reserve is one of China's most popular tourist attractions, drawing more than five million visitors per year to the sparsely populated mountains of north-western Sichuan. The reserve has been home to farmer-herders for thousands of years, but to conserve the biodiversity and scenic quality of the reserve, park policies prohibit residents from farming, herding and wood cutting.

Sovereign nations typically measure economic success in terms of GDP (income) but this approach is risky as it fails to track and measure the impact of this on nature. Inclusive wealth, on the other hand captures financial and produced capital, but also the skills in our workforce (human capital), the cohesion in our society (social capital) and the value of our environment (natural capital).

In these unusual and tragic times, I am indeed grateful that we are able to connect virtually to continue the business of environmental governance. While the efforts of all your capitals are correctly focused on preventing human suffering, as parts of the world move slowly towards recovery, the environmental agenda remains one of our most powerful insurance policies in preventing future global pandemics like COVID-19.

Tropical rainforests are the world's richest land habitats for biodiversity, harbouring stunning numbers of plant and animal species. The Amazon and the Congo basins, together with Asian rainforests, represent only 6 per cent of earth's land surface, and yet more than 50 per cent of global biodiversity can be found under their shade.

To imagine earth without greenhouse gases in its atmosphere is to turn the familiar blue marble into a barren lump of rock and ice on which the average surface temperature hovers around -18ºC. Such a planet would not receive less of the sunlight which is the ultimate source of all Earth's warmth. But when the energy it absorbed from the sunlight was re-emitted as infrared radiation, as the laws of physics require, it would head unimpeded back out into space.

And against the backdrop of threatened lives, crippled businesses and damaged economies, the UN chief warned the Petersberg Climate Dialogue in Berlin that the Sustainable Development Goals (SDGs) are also under threat.

As the coronavirus pandemic continues to wreak havoc, the world's energies are rightly focused on efforts to contain the virus and manage the economic fallout. Yet, in the background, the climate emergency remains as urgent as ever.

"Pollinators were the key," says Edgar Mora, reflecting on the decision to recognise every bee, bat, hummingbird and butterfly as a citizen of Curridabat during his 12-year spell as mayor.

In the wake of the COVID-19 crisis, any economic stimulus measures must safeguard nature or governments risk exposing humanity to further pandemics.

Ordinary citizens felt like they had been sold a bill of goods. They were right to feel conned.

Nobel Laureate Joseph E. Stiglitz asks whether “Davos man” — rich, and powerful, perhaps out of touch, but representative of the global elite — has become more enlightened.

The flu vaccine was developed through open science, without any intellectual-property considerations. Imagine if we could do the same for COVID-19.

With scarce resources that are quickly dwindling, developing nations could soon be buried by debt.

Outcomes of the Meeting of the Friends of the Co-Chairs on liability and redress, Bonn, 7-10 May 2008

New Publication: Rules, Procedures and Mechanisms Applicable to Processes under the Cartagena Protocol on Biosafety.