We use cookies to allow us and selected partners to improve your experience and our advertising. By continuing to browse you consent to our use of cookies. You can understand more and change your cookies preferences here.

Which? Investigates bonus interviews: Travel, working from home and money

To round of season one of Which? Investigates we are giving you the chance to hear more from three of the most interesting conversations we had whilst recording the second half of the season

Which? Investigates bonus interviews: Travel, working from home and money

The new Which? Investigates podcast explores how we can all be more sustainable consumers and the barriers we often find along the way. We’re demystifying the world of green jargon to find out what really matters when it comes to improving our environmental impact.

Reducing your carbon footprint is never quite as simple as it seems. Our first podcast season investigates the ways in which UK consumers have an impact on the environment and where we can make a difference. We dig into the facts around the sustainability issues that matter, from our energy supplies to our diets, and our cars to our gadgets.

Plus, we put common sustainability claims under the spotlight to find out which are actually useful and which are just hot air.

Join science journalist and producer Greg Foot and our own Which? experts as they figure out how we can genuinely reduce our environmental footprint, and what’s simply green-washing.

If you enjoy our new podcast, please do remember to rate and review us, and subscribe wherever you get your podcasts.


Live more sustainablyget our free Sustainability newsletter to make changes for you and the planet


Which? Investigates

End of season bonus: More on travel, working from home and money

Available soon 06/08/21: To round of season one of Which? Investigates we are giving you the chance to hear more from three of the conversations we had whilst recording the second half of the season:

Justin Francis, CEO of Responsible Travel discusses whether we can ever holiday without harming the planet, before answering whether trips abroad can ever be truly sustainable (02.35 – 16.12).

Mike Berners-Lee explains how you work out the carbon footprint of everything, including the impact our working live can have on the planet (17.58 – 34.02).

Olivia Bowen, partner and financial advisor at Castlefield, reveals all on the world of ethical investing and what a ‘green’ investment fund actually means (36.20 – 47.33).

We very much hope you enjoyed this first season of the podcast – if you did please do rate & review us on Apple Podcasts – and we’ll be back in the autumn for Season 2!

End of season bonus: References

Read the Which? Money guide to ethical investing explained.

Read our five ways to holiday more sustainably when travel opens up again.

A full transcript for the end of season bonus episode will be available shortly.

Episode Eight: Could your money be causing climate change?

This week, Greg has heard a claim that all the eco-benefits of eating less meat to cut your food footprint, driving an EV to reduce your travel emissions, and choosing products that don’t contribute to deforestation could be completely undone by something you may not have considered: your money.

In this Which? investigation, Greg Foot finds out how our bank accounts, pensions and investments may be causing climate change without our knowledge. He teams up with the Which? Money team to analyse the ‘sustainable’ and ‘ethical’ options, and discovers what could be the biggest case of green-washing yet.

Episode Eight: References

Read the Which? Money guide to ethical investing explained.

We quote lots of research from other places in our episode. Head to our episode eight show notes to continue your own reading.

You can read the full transcript for episode eight of Which? Investigates here.

Episode Seven: Does working from home help save the planet?

After a year of Zoom calls, countless hours sat in makeshift home offices, and less time stuck in commuter traffic, what does the future of work look like?

Will ‘hybrid working’ reign supreme? And is WFH actually be better for the planet?

In this Which? investigation, Greg Foot reckons that with some offices down-sizing and fewer of us travelling to work, the eco-benefits could be huge. He soon learns that it’s much more complex than he thought

Episode Seven: References

We quote lots of research from other places in our episode. Head to our episode seven show notes to continue your own reading.

You can read the full transcript for episode seven of Which? Investigates here.

Episode Six: Can we ever fly on holiday with a clear conscience?

We’ve all heard that flying is terrible for the planet, but is there any chance of it getting cleaner? Can ‘carbon-offsets’ soak up and neutralise your flight’s emissions? And will ‘bio-fuel’ decarbonise the aviation industry?

In this Which? investigation, Greg Foot asks if he can ever justify taking a flight, learns about the benefits and wider impacts of travelling abroad, and uncovers how ‘eco-friendly’ an ‘eco-holiday’ really is.

Episode Six: References

Read our five ways to holiday more sustainably when travel opens up again.

We quote lots of research from other places in our episode. Head to our episode six show notes to continue your own reading.

You can read the full transcript for episode six of Which? Investigates here.

Episode Five: Will hydrogen soon be heating your home?

Homes and heating are responsible for around a fifth of the UK’s carbon emissions. There’s increasing talk of our boilers potentially being upgraded to hydrogen, and increased government interest in heat-pumps as a possible way to reach the net zero target. But what really is the future of your home heating system?

In this investigation, Greg Foot asks if these are indeed viable options for your home or whether their green credentials are being exaggerated. He also looks to Norway to learn about ‘district heating’ and finds out what you should do next time your boiler fails.

Episode Five: References

For more on green energy, head to our guide to green energy suppliers.

Or, if you’re ready to get off the grid, find out more about installing solar panels or ground and air-sourced heat pumps in your home.

We also quote lots of research from other places in our episode. Head to our episode five show notes to continue your own reading.

We also have a transcript of the full episode which you can read here.

Bonus episode: More on phones, alt-meat and electric cars

This is a chance to hear more from three of the experts we spoke with while recording the first half of season one:

  • Materials scientist, engineer and broadcaster Mark Miodovnik reveals more about how your mobile phone is made, how repairable it is (or not), and the shocking reality of what happens if you recycle it (02:22-19:14).
  • Journalist and author of ‘Sex Robots and Vegan Meat’, Jenny Kleeman, shares stories of her unique research trips looking at the alternative meat industry (20:45-32:31).
  • Which? car expert Adrian Porter answers some of your biggest questions about electric vehicles (EVs) (34.11 – 48.39).

Episode Four: Is a plant-based diet healthier for you and the planet?

With more and more plant-based burgers, milks and other alternatives filling our shopping aisles, it’s never been easier to cut meat and dairy products from your diet. But as advocates make claims for the health-promoting and planet-saving power of going plant-based, what does the evidence say?

In this Which? Investigation we ask if cattle farming can ever be sustainable, uncover how ‘plant-based’ doesn’t always mean ‘planet-friendly’, and learn how healthy, or not, these meat-alternative products really are.

Episode Four: References

For more on a plant-based diet, head to our guide to plant-based milks and which are best for your health and the environment. And find out more about decoding food labels.

Or, check out our guide to the best vegan wines.

We also quote lots of research from other places in our episode. Head to our episode four show notes to continue your own reading.

Or read the full transcript for episode four.

Episode Three: Are electric cars really greener?

With the UK set to ban the sale of new petrol and diesel cars by 2030, more of us are considering the switch to electric. But with the environmental impact of making the batteries, and the need to generate the electricity to charge them, what is truly the greenest option – go electric or stick with a petrol or diesel car?

In this Which? investigation Greg Foot reveals how these ‘zero emission’ cars don’t come with a zero footprint. He asks whether the UK is ready for such a dramatic change to our transport infrastructure, and discusses whether the switch to electric is actually feasible for many of us in the UK.

Episode Three: References

Head to our guides to the best electric cars for 2021 or find out more about how much it costs to charge an electric car.

We also quote lots of research from other places in our episode. Head to our episode three show notes to continue your own reading.

Or read the full transcript for episode three.

Episode Two: Does your phone come with an expiry date?

When you buy a new phone, you expect it to last, but could that new handset have a shelf-life that’s shorter than your contract? A cracked screen or a dodgy battery can be a pain to repair, but is that driven by manufacturers or by consumers eager for the latest feature-packed model?

Greg Foot asks who’s to blame for the mountain of ‘old’ mobiles hidden away in drawers up and down the country. Find out what it takes to make a phone, the surprising facts about what happens if you recycle one, and how phone companies may be putting you at risk.

Episode Two: References

Find out more about how to repair your broken phone.

Or read our guide on buying a second hand mobile phone.

We also quote lots of research from other places in our episode. Head to our show notes to continue your own reading.

Read the full transcript for episode two of the Which? Investigates podcast here

Episode One: is plastic packaging always bad?

The packaging on our everyday groceries is enemy number one for anyone trying to do their bit for the planet. But why is there still so much of it around and what makes it so hard to recycle?

Greg Foot and Which? researchers investigate the current state of supermarket packaging. We look at why so much of the plastic that wraps our food is completely unrecycleable and whether biodegradable plastic is the answer.

Plus, what can we do about the food that simply has to be wrapped up to protect it from damage that would send it straight to landfill?

Episode One: References

Read through our past investigations into the UK groceries with a plastic packaging problem, which refillable plastic bottles are worth looking out for and the global brands that fall short on recyclability.

We also quote lots of research from other places in our episode. Head to our show notes to continue your own reading.

Read the full transcript for episode one of the Which? Investigates podcast here.

How to subscribe to Which? Investigates

You can find Which? Investigates wherever you normally get your podcasts, or click on these links to go straight to the show on your preferred platform:

More on sustainability from Which?

Back to top
Back to top