Earth Day is coming on April 22, but the whole month is seen as an opportunity to think about environmental issues and what we as individuals can do to help out.

It seemed like a good time to rerun an episode we made with Harvard professor Dan Gilbert about why we humans are great at tackling immediate threats, but find it harder to motivate ourselves to address problems that seem a longer way off. It's why we often don't save for our retirements, and why we're finding it difficult to take action on climate change.

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Hell is other people. They can upset us, depress us and infuriate us. Their bad moods can bring us down. And their achievements can make us feel like failures. But it doesn't have to be this way.

Psychologist Ethan Kross says there are simple things we can do to make our daily interactions a source of fulfilment and joy.

Ethan's the author of Shift: Managing Your Emotions So They Don't Manage You and founder of the Emotion and Self Control Lab at the University of Michigan

Recorded before a live audience of teen students at Choate Rosemary Hall.

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What's your purpose? Jordan Grumet thought that becoming a doctor would give his life meaning and direction... but he was wrong. He spent his days doing things he didn't really enjoy and dreaded waking up in the morning.

Finding a purpose that is authentic to you can be transformative - and it doesn't have to be some grand goal like curing a disease or founding a company. Jordan, author of The Purpose Code, explains how we can all find seemingly small and everyday activities which will fill our lives with joy and fulfillment.

Jordan also hosts the Earn & Invest podcast.

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