The Climate Question

More than seven billion of us are expected to be living in urban areas by 2050. So what are the world’s great cities doing about climate change?
Humans are now city creatures – with more than half the world’s population already living in urban environments, and huge growth expected in cities in Asia and Sub-Saharan Africa during the rest of the 21st century.
So mayors are on the front line of dealing with climate change – whether it’s keeping people cool during heatwaves or redesigning cities to cope with floods.
In this edition of The Climate Question, Host Jordan Dunbar hears about inspiring solutions from cable cars in Colombia to water parks in the Netherlands and city gardens in the Philippines.
His guests are Yvonne Aki-Sawyerr, the mayor of Freetown in Sierra Leone and Co-Chair of the C40 Cities Coalition, and Rogier van den Berg, an architect and urban planner who’s Global Director at the WRI Ross Center for Sustainable Cities.
Jordan, Yvonne and Rogier also discuss the crucial role that cities need to play in reducing carbon emissions by making buildings more energy-efficient and rethinking transport.
Got a question or comment? You can email the team: theclimatequestion@bbc.com
Producers: Jordan Dunbar, Diane Richardson, Melanie Stewart-Smith
Sound Mix: Dave O'Neill and Tom Brignell
Editor: Simon Watts

Scientists say the El Niño weather pattern has started and this one is potentially so strong that it could have devastating effects in many parts of the world. So how does El Niño work exactly? And what’s the connection with climate change?
El Niño starts when water temperatures rise near the Pacific coast of South America, but the impact on weather is felt around the globe. Some regions are more likely to experience severe droughts or more powerful storms; others could face the threat of severe flooding.
This “Super” El Niño is likely to add 0.2 or 0.3 degrees to the global temperature. When added to the impact of climate change, scientists say the world could be headed for a new heat record in 2027.
In this edition of The Climate Question, hosts Graihagh Jackson and Jordan Dunbar chat to Mark Maslin, Professor of Earth System Science at University College, London, about what might happen and how the world can prepare.
Got a question or comment? You can email the team: theclimatequestion@bbc.com
Producer: Grace Braddock
Sound Mix: Mike Regaard and Tom Brignell
Editor: Simon Watts
Picture Credit: Reuters

Parts of India have been facing extreme heat - with temperatures soaring past 46 degrees Celsius. But a less familiar story unfolds after dark. When temperatures stay high after sunset, an essential human need is threatened: sleep.
Scientific research suggests that hot nights are leading many of us around the world to lose shut-eye already. Our bodies need to cool down to fall asleep – but hotter nights make that much harder. And the impacts go way beyond just feeling tired; disrupted sleep has links to poor cardiovascular health and depression. Women, children, the elderly and those living in hot countries with less income are most affected.
As global temperatures rise due to climate change, experts warn that the impact on our sleep – and our health – will only worsen.
Presenter Graihagh Jackson speaks to sleep expert Dr Sophie Bostock and BBC Marathi reporter, Janhavee Moole. They explore how rising temperatures are disrupting sleep in India and beyond – and share practical tips on how to stay cool in a warming world.
Producer: Graihagh Jackson, Janhavee Moole and Grace Braddock
Sound engineer: Ben Andrews and Tom Brignell
Editor: Simon Watts

Insects play a crucial role in food production and the spread of disease, as well as being keystone species in many ecosystems. What does a warmer world mean for them?
Climate Question hosts Graihagh Jackson and Jordan Dunbar talk to zoologist Dr Tim Cockerill, Senior Lecturer at Falmouth University.
Got a question or comment? You can email the team: theclimatequestion@bbc.com
Producers: Diane Richardson, Graihagh Jackson and Grace Braddock
Sound mix: Mike Regaard and Tom Brignell
Editor: Simon Watts

Scorching temperatures are expected at this year’s World Cup in the USA, Mexico, and Canada. How will players and fans cope? And how will it affect the action on the pitch?
Scientists are concerned about the impact of extreme heat on the biggest sporting event in history.
The organisers, FIFA, is introducing mandatory water breaks to keep players cool, but experts say the hot conditions may slow down the game and give an advantage to teams that play more matches in air-conditioned stadiums.
There’s also concern about the health effects on fans. FIFA has put in place measures such as cooling areas and misting systems, but some say the plans don’t go far enough.
The Climate Question hosts Graihagh Jackson and Jordan Dunbar chat to Dr Madeleine Orr, Associate Professor of Sports Ecology at the University of Toronto, and BBC Sport Correspondent Katie Gornall.
Katie also breaks down the carbon footprint of a World Cup that’s been described as one of the most polluting events ever.
Got a question or comment? You can email the team: theclimatequestion@bbc.com
Presenters: Graihagh Jackson and Jordan Dunbar
Producers: Nik Sindle, Jordan Dunbar, Melanie Stewart-Smith
Sound Mix: Tom Brignell, Philip Bull
Editor: Simon Watts