Biodiversity, the variability among living organisms from all sources, underpins all life on Earth. This includes diversity within species, between species and across ecosystems, representing the genetic makeup of plants, animals, microorganisms and the complexity of ecosystems.Healthy communities are sustained by well-functioning ecosystems, which provide critical services such as clean air, fresh water, natural medicines and food security. These ecosystems also regulate diseases and help stabilize the climate. For example, forests absorb over 2.6 billion tonnes of CO2 annually, contributing to climate regulation and reducing the incidence of diseases linked to pollution. However, biodiversity loss is accelerating at an unprecedented rate, with approximately 1 million species at risk of extinction, threatening these vital services and exacerbating public health risks globally.