As the Brazilian city hosts half a million tourists and 10,000 athletes for the Olympic games, CDP submission shows multiple global warming threats
The 8GW Sao Luiz do Tapajos hydropower project is expected to get the thumbs down from Brazilian regulators, in move cautiously welcomed by activists
Non-profit CDP reports 533 cities are sharing their climate plans, an increase of 70% since 2015
Campaign launches to promote clean energy and sustainable lifestyles, with stars backing #sport4climate
Gas and motorway projects offer poor value for money and could be stranded as climate regulations kick in, say E3G researchers
Record heat, drought and continued glacier retreat show global warming fingerprint in 2015 state of the climate report
Libertarian Party emerges as unlikely home for climate-concerned Republicans as Donald Trump rails against green laws
Scientists have found a way to turn carbon dioxide into usable energy, which could help tackle climate change
Sourcing biofuels to replace oil will cost billions, but without radical cuts in air traffic or improvements in technology it may be the only solution to cut airline emissions
Climate analysts welcome renewables funding, but warn European Commission still supports low value, polluting projects
Email exchanges between Australian government and Paris-based UNESCO indicate officials colluded in keeping lobbying over key climate report secret
Planned celebrations by the nuclear industry were cancelled last week following the shock decision to put the world’s largest electricity project on hold
A look ahead to the week in climate politics. Sign up to have our Friday briefing and Monday’s crib notes sent to your inbox
Janos Ader has taken a hawkish stance on global warming in his time as president, but change at home has proved harder to deliver
This week’s top climate politics and policy stories. Sign up to have our Friday briefing and Monday’s crib notes sent to your inbox
Keynote speech from Democrat candidate identifies climate change and multilateralism as core priorities for campaign
Not reality TV: celebs highlight threat to US posed by rising sea levels, wildfires, drought and crop failure linked to fossil fuel emissions
Biomass, wind and other clean sources produced a quarter of UK electricity last year, government figures show, as plant closures reduced coal’s share to 22%
Cutting back lianas allows trees to flourish, study finds, with lessons for forest management across tropical Africa, South America and Asia
If elected president, Hillary Clinton will convene a climate summit in the first 100 days, according to platform endorsed at Democratic National Convention in Philadelphia