Science Update
Climate change: Impacts 'accelerating' as leaders gather for UN talks
A snapshot of the latest science, published as politicians gather in New York, says climate change is speeding up.
Stratford vet tries to save orangutan shot 130 times
Paul Ramos was in Borneo to film the work being done to save the orangutan population.
Swapping traffic for a workout on Ethiopia's streets
Sunday 22 September is World Car Free Day - but in Ethiopia it happens once a month, in cities across the country.
Night in national park 'for every schoolchild'
Independent review suggests new ideas to "re-ignite" England's protected landscapes.
The photographer capturing mankind's impact on planet Earth
Photographer Edward Burtynsky explains his 40-year quest for striking images of our impact on the planet.
Climate strike: Protests in cities across the world
Millions of people join a global environmental strike led by schoolchildren.
Euclid space telescope to study 'dark Universe' makes progress
Europe's space mission to uncover the secrets of dark matter and dark energy reaches a key milestone.
Drillminister's new song Choke highlights air pollution
Speaking on BBC Victoria Derbyshire Drillminister called for the government to act faster with air pollution.
Post office team picked for Antarctic Port Lockroy base
The team will spend four months franking stamps on tourists' postcards and counting penguins.
Climate change: Offshore wind expands at record low price
The UK announces projects to power seven million homes with wind power - and no need for subsidy.
Climate protest student: 'I'm here to step up and say no more'
Student Gina Hale is one of the protesters taking part in the day of climate action.
SLS: Nasa's giant 'Moon rocket' takes shape
Nasa finishes assembling the main structural components for its largest rocket since the Apollo-era Saturn V.
Award for man who stopped a mega-dam and saved Borneo's rainforest
Peter Kallang has been awarded a top environmental prize for a successful campaign to stop a mega-dam being built in Borneo.
Cut air pollution to fight climate change - UN
The global effort to tackle emissions will be debated at the UN Climate Action Summit in New York.
Climate change: Arctic expedition to drift in sea-ice for a year
Germany will embed its Polarstern research ship in sea-ice for a year-long study of the climate.
Bird populations in US and Canada down 3bn in 50 years
Scientists conclude the major factor is habitat loss driven by human activity.
Denisovans: Face of long-lost human relative unveiled
The reconstructions offer the first glimpse of what the Denisovan looked like.
Fish waste-based alternative to plastic wins Dyson Award
MarinaTex is an alternative to the single-use plastics such as those used in sandwich packets.
Climate change: Rugby World Cup highlights injustice
Pacific nations bearing brunt of climate inaction by Australia, US and hosts Japan says Christian Aid study.
Indonesia haze: What it's like breathing in Asia's hazardous smoke
Authorities have tried to clamp down on the fires causing the annual haze - so why is it still happening?