Explore the vast range of titles available.

At 400 p.p.m., nations will have a difficult time keeping global warming in check, says Corinne Le Quéré, a climate researcher at the University of East Anglia in Norwich, UK, who says that the impact \"is getting very dangerously close to reaching the 2 °C target that governments around the world have pledged not to exceed\". Emissions of other greenhouse gases are also increasing, pushing the total equivalent concentration of CO2 in the atmosphere to around 478 p.p.m. in April, according to Ronald Prinn, an atmospheric scientist at the Massachusetts Institute of Technology in Cambridge.

Almost all the dinosaurs have vanished from the National Museum of Natural History in Washington DC. The fossil hall is now mostly empty and painted in deep shadows as palaeobiologist Scott Wing wanders through the cavernous room. Wing is part of a team carrying out a radical, US$45-million redesign of the exhibition space, which is part of the Smithsonian Institution.

Cordelia Bähr is part of Nature ’s 10, a list of people who shaped science in 2024. Cordelia Bähr is part of Nature’s 10, a list of people who shaped science in 2024.

On 9 April, Cordelia Bähr and the 2,500-plus women she represented in a landmark climate lawsuit were waiting to hear how the European Court of Human Rights (ECHR) would rule. The court ruled that Switzerland was violating the human rights of the KlimaSeniorinnen's members by not taking adequate measures to limit global warming. \"For me, it was quite a natural thing that these two things belong together, and that the climate crisis is one of the biggest potential infringements of human rights.\"

When researchers spotted clues that trees were growing to record heights in the rainforest, they tried, failed and tried again to reach the remote site. When researchers spotted clues that trees were growing to record heights in the rainforest, they tried, failed and tried again to reach the remote site. Credit: Photographed by Pablo Albarenga for Nature

[...]the data they collected could help to fill in details about how much carbon the Amazon holds, and whether threats such as climate change and deforestation will disrupt that capacity. The plane carried a lidar device that sends out laser pulses and measures the time it takes the reflections to return. Because the signals reflect off the ground and foliage, it provides a 3D portrait of the forest and extremely precise measurements of tree height. The top of the forest in most lidar tracks reaches about 40 or 50 metres above the ground. The record holder in the data set reached 88.5 metres from ground level to the topmost foliage visible in the lidar data.

Species are disappearing quickly — but researchers are struggling to assess how bad the problem is.