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42: The Answer to Almost Everything

S1 E202021

Could Algae Save the Planet?

Episode Synopsis

The fact that we have a breathable atmosphere on Earth is largely down to algae. Could these aquatic plants be the secret of solving climate change and saving ourselves and the planet?

Next Episodes

Can we dig our way through the Earth?

Episode 1

Could We Live on the Moon?

Episode 2

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3

Should we use lotteries instead of elections?

Episode 3

How Much Does Life Weigh?

Episode 4

Will we move onto the water?

Episode 5

Can Algorithms Make Us Healthy?

Episode 6

What if there were no mucus?

Episode 7

How do we solve the nuclear waste puzzle?

Episode 8

What if Fear Didn't Exist?

Episode 9

What if the ice disappeared?

Episode 10

Do We All hear the Same Thing?

Episode 11

Are we too pessimistic?

Episode 12

Does the Perfect Song Exist?

Episode 13

Are we alone in space?

Episode 14

Why Do We Eat What We Eat?

Episode 15

What is the secret of light?

Episode 16

Can we save the trees?

Episode 17

What if dust didn't exist?

Episode 18

Geoengineering: Earth's Last Resort

Episode 19

Could Algae Save the Planet?

Episode 20

Will Messenger RNA Save Us From Cancer?

Episode 21

Will We Stop Flying?

Episode 22

Will We Like Robots?

Episode 23

The Purpose of Parasites

Episode 24

Could We Sleep Less?

Episode 25

Are Cryptocurrencies the Future?

Episode 26

Do We Live in a Black Hole?

Episode 27

The Power of Dreams

Episode 28

Where do people migrate to?

Episode 29

What Do Animals Talk About?

Episode 30

Are we getting dumber?

Episode 31

Do Computers Have Biases?

Episode 32

How can everyone be fed?

Episode 33

Are We Doing More Drugs?

Episode 34

Are We Ready for Mars?

Episode 35

Can we glimpse the afterlife?

Episode 36

Could we become immortal?

Episode 37

Could We Live Without Agriculture?

Episode 38

How dangerous is space weather?

Episode 39

Will we travel to Mars?

Episode 40

Can We Create Money from Nothing?

Episode 41

How do we end wars?

Episode 42

Is Space Being Stolen From Us?

Episode 43

What Power Do Thoughts Have?

Episode 44

Can We Trust Ourselves?

Episode 45

Are we more intelligent in swarms?

Episode 46

The Search for a Universal Theory

Episode 47

Can we turn crap into gold?

Episode 48

Are You Psychopathic?

Episode 49

How does a wave become rogue?

Episode 50

Do We Need Economic Growth?

Episode 51

Are we gambling away our lives?

Episode 52

Why do we have limits?

Episode 53

Where to Find Perfect Energy?

Episode 54

What if sharks disappeared?

Episode 55

Are Animals Self-Aware?

Episode 56

Why do We Fall in Love?

Episode 57

What if nature had a price?

Episode 58

Can we copy our blood?

Episode 59

Why do we hate?

Episode 60

Could We Bring Back the Wooly Mammoth?

Episode 61

Can seals go to court?

Episode 62

Do colors manipulate us?

Episode 63

Will there be a new 'human species'?

Episode 64

Is There a Male Fertility Crisis?

Episode 65

Can Cities Save the World?

Episode 66

When the Heavens Rain Down

Episode 67

Do Fungi Rule Us?

Episode 68

The A***hole Effect

Episode 69

How It All Ends

Episode 70

When Will the World End?

Episode 71

How to Travel Through Time?

Episode 72

Mind Reading: A Reality?

Episode 73

Surviving Our Polluted Planet

Episode 74

The Chaos of Chance

Episode 75

Who Owns the Sea?

Episode 76

Do Animals Appreciate Beauty?

Episode 77

Will a new wind soon blow?

Episode 78

Are we going to disappear beneath the waves?

Episode 79

Are We All Bisexual?

Episode 80

The Advent of Turbo-Evolution

Episode 81

Why do we lose our memory?

Episode 82

Humanity's True Nature

Episode 83

Can We Live Without Electricity?

Episode 84

What Happens When the Glaciers Disappear?

Episode 85

Could We Reach the Stars?

Episode 86

Is Lying Good For Us?

Episode 87

Will we one day be cryogenically frozen?

Episode 88

Will we run out of sand?

Episode 89

What's So Funny?

Episode 90

The Origin of Life

Episode 91

Does Punishment Work?

Episode 92

What Are Our Imaginations For?

Episode 93

Can We Trick Our Genes?

Episode 94

Amasia: The Supercontinent of the Future

Episode 95

Do Dogs Really Love Us?

Episode 96

Do We Need Corruption?

Episode 97

Are Animals Cleverer than Us?

Episode 98

Are Billionaires a Problem?

Episode 99

How strongly does our mother tongue shape us?

Episode 100

Do We Live in a Multiverse?

Episode 101

Does History Repeat Itself?

Episode 102

Are there too many of us on Earth?

Episode 103

Is stress good for us?

Episode 104

Do Disasters Make Us Better?

Episode 105

Is the Metaverse Real?

Episode 106

Do We All Have a Doppelganger?

Episode 107

Could We Programme Evoluton?

Episode 108

Is There an Upside to Climate Change?

Episode 109

Do We Need More Utopias?

Episode 110

Can we control clouds?

Episode 111

Does Sugar Make Us Stupid?

Episode 112

What if the poles reversed again?

Episode 113

What power do smells have?

Episode 114

Can We Shrink the Economy?

Episode 115

How Do Plants Live?

Episode 116

How to Become Popular

Episode 117

Do We Need to Have Power?

Episode 118

Should Humans Be Smaller?

Episode 119

Is AI Out of Control?

Episode 120

Are Invasive Species Always a Problem?

Episode 121

Would We Be Happier Without Happiness?

Episode 122

Why Do We Cry?

Episode 123

Could Sea Currents Change?

Episode 124

Could Matriarchy Be the Solution?

Episode 125

Are Aliens Like Us?

Episode 126

Is Pain Necessary?

Episode 127

Do Animals Have Better Societies?

Episode 128

How Powerful are Maps?

Episode 129

Does Quantum Physics Change Our Reality?

Episode 130

Why Do We Have Less Sex?

Episode 131

Has Slavery Made Us Racist?

Episode 132

Why Is Housing So Expensive?

Episode 133

Can We Make Friends with Our Enemies?

Episode 134

Can We Replace Pollination?

Episode 135

Are We Taking Enough Risks?

Episode 136

Who Really Were Our Ancestors?

Episode 137

Is a World Without Violence Possible?

Episode 138

Can We Remember Precisely?

Episode 139

What Holds the Universe Together?

Episode 140

Do We Need God?

Episode 141

What Protests Work?

Episode 142

How do Children Function?

Episode 143

Will We Grieve Differently in Future?

Episode 144

Do We Need Weapons for Peace?

Episode 145

What Should We Actually Eat?

Episode 146

Are We Ready for Aliens?

Episode 147

How Important is Our Microbiome?

Episode 148

Why Is Wealth So Unfairly Distributed?

Episode 149

What Makes Us Depressed?

Episode 150

Does the Perfect Code Exist?

Episode 151

Are We Ready for World Government?

Episode 152

Are We Wasting Period Blood?

Episode 153

Can We Feel Time?

Episode 154

How Does Water Create Life?

Episode 155

Are Cyborgs the Future?

Episode 156

Can We Save Truth?

Episode 157

Can We Cure Addictions?

Episode 158

Are We Too Curious?

Episode 159

What Did Dinosaurs Really Look Like?

Episode 160

Can We Outwit Viruses?

Episode 161

Where Does Madness Begin?

Episode 162

Should We Be Bored More Often?

Episode 163

How Powerful is Disinformation?

Episode 164

Why Do Civilisations Fall?

Episode 165

Should We Argue More?

Episode 166

How Mathematic is the Universe?

Episode 167

Is The World Better Than We Think?

Episode 168

How Smart Are the Animals We Eat

Episode 169

Does Failure Help Us Succeed?

Episode 170

Was Stone-Age Man Dumber Than Us?

Episode 171

The Age of Fire

Episode 172

Why Does Music Move Us?

Episode 173

Optimisation: Is It Making Us Mad?

Episode 174

Is a Superbug Pandemic Coming?

Episode 175

Can Humans Hibernate?

Episode 176

Does Society Need Alcohol?

Episode 177

...We Make Free Decisions?

Episode 178

What was there before the Big Bang?

Episode 179

How Powerful Are Images?

Episode 180

How Does the Female Orgasm Work?

Episode 181

Is Space Debris Dangerous for Earth?

Episode 182

Can Our Brains Still Concentrate?

Episode 183

Why Do We Love Horror?

Episode 184

Does Planet Nine Really Exist?

Episode 185

Are We An Evolutionary Superspecies?

Episode 186

Are Wasps Game Changers of Evolution?

Episode 187

Why do we sing?

Episode 188

How monogamous are humans?

Episode 189

Why Do We Love Gold?

Episode 190

Do Emotions Control the Markets?

Episode 191

What if life were mirrored?

Episode 192

Do we need the alpha male?

Episode 193

Black Holes: A Future Energy Source?

Episode 194

Is Brain Washing Possible?

Episode 195

Why Are We So Competitive?

Episode 196

Do We Need Siblings?

Episode 197

Has Globalisation Failed?

Episode 198

How does trash change the world?

Episode 199

Is vacation really relaxing?

Episode 200

Can we change?

Episode 201

Is there another Earth in the universe?

Episode 202

Can AI Feel Us?

Episode 203

Does a Trauma Lie Dormant in Everyone?

Episode 204

What Lies Behind UFOs?

Episode 205

Can states go into debt indefinitely?

Episode 206

Does scrolling make teens stupid?

Episode 207

Can We Live Without Work?

Episode 208

Is there a female fertility crisis?

Episode 209

Is Loneliness Contagious?

Episode 210

How Do You Become a Genius?

Episode 211

Can We Stop Mass Extinction?

Episode 212

Can We Control Our Hormones?

Episode 213

Where Did the Antimatter Go?

Episode 214

Are Political Parties to Blame for Everything?

Episode 215

Do Ready Meals Make Us Ill?

Episode 216

Who killed Venus?

Episode 217

Episode 218

Episode 218

Episode 219

Episode 219

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