10:46 | Wind turbines are playing a big part in cleaning up our energy system. But the blades are close to impossible to recycle and largely end up in landfills. There are more and more companies promising to fix that. Can they?
11:39 | You may know laughing gas from your visit to the dentist. But did you know that it’s actually a climate killer – 300 times as potent as CO₂? Why is no one talking about it? And how can we to stop it?
9:33 | The shortest flight in Europe takes less than a minute – and it’s getting increasingly hard to justify emissions from such trips as the planet heats up.
8:33 | While we’ve grown accustomed to seeing solar panels on rooftops, what about wind turbines? Are they destined to be overshadowed by their bigger counterparts?
9:06 | Around 4% of global electricity is used for providing tap water. That number is only going to increase and its carbon emissions rival that of aviation. But a surprisingly simple idea can make our water supply more sustainable: In-pipe energy.
11:57 | Building solar farms and wind parks is one thing. Plugging them into the grid is another. How does our power system need to change to cope with more renewables?
16:21 | A growing number of people believe that humanity is doomed because of climate change, while some are even full-blown preparing for a world post-collapse. Like Ben Green, who calls himself a “happy doomer”.
12:00 | We started debunking some of the biggest myths about wind and solar energy – and ended up in a world of shady lobby groups and secret money streams.
9:59 | High up in the sky we find gigantic resources of energy which are untapped so far. How can we harvest these hidden and never-ending resources?
8:58 | Marine environments are effective at capturing carbon and storing it for thousands of years. But what if we could engineer them to capture even more? Can they take on this burden?
10:41 | We’ve known how to build electric cars since long before Tesla came around. And yet, for more than 100 years, we’ve largely relied on the internal combustion engine to get us from A to B. But that’s changing – faster than we might expect.
13:41 | Melting ice sheets are the biggest danger to sea level rise. But researchers are investigating whether there could be a way to stop the flow of ice. Could these far-out ideas be worth it?
9:53 | The lithium-ion battery has powered us for decades. But for a renewable future, we need a new solution—and fast. So what are our options?
11:53 | Private jets. Mega-yachts. Helicopters. Mansions. The luxury lifestyles of the ultra-rich are pumping our air full of pollutants. So how do we clean them up – and why is progress so slow?
11:55 | Natural gas is abundant, versatile – and much cleaner than coal. It lets us keep the lights on AND reduce emissions. That’s great, right? Well, yes. If it wasn’t for one small detail: it’s still a fossil fuel.
12:47 | All over the planet, billions of euros are being poured into developing nuclear fusion technology. And recent “breakthroughs” in plasma physics experiments have stunned the scientific community. Are we on the brink of an era of limitless clean energy supply?
10:59 | Clean energy from re-growing resources and waste. Biomass sounds like a perfect alternative power source. Globally, at least 5% of energy come from biomass. But what does it mean if we use organic matter for fuel or electricity?
14:50 | On our way to an emissions-neutral future the use of solar energy is crucial. The problem: the space for photovoltaic systems is getting tight. We need land for food, for housing, to preserve biodiversity. So where to go with the solar cells?
11:16 | The oceans, that cover most of the planet, are full of energy. So much, in fact, that if we could harness that of all the waves, we’d fulfill global demand three times over. There’s just one small problem.
10:40 | Constructing buildings is awful for the environment. With 60% of the world population set to live in cities by 2030, how can we make buildings…not suck?
9:38 | The car industry is trying to save the combustion engine. Their best bet: synthetic fuels.
14:00 | There are no silver bullets in the fight against climate change — but there are some blindingly obvious solutions that wouldn’t hurt anybody.
12:44 | Bringing up climate change is one tried and true way to ruin a dinner party — and leave people feeling helpless and apathetic. But it doesn’t have to be that way, if we change how we communicate.
12:07 | Some say it’s the fuel of the future that will soon power large parts of our economies. Others say it’s just a hoax propagated by the oil and gas industry.
8:38 | Concrete is simple, cheap, strong and lasts long. But the wonder material that’s all around us is responsible for 8% of global CO2 emissions — and it’s not easy to change that.
15:10 | Carbon offsets sound so promising: If you emit some CO2, you can just pay someone else to reduce that amount somewhere else, and you’re good! But is it too good to be true?
11:57 | It’s estimated that we could (practically) capture enough tidal energy to power all homes in the United States TWICE over – but we can only manage a tiny fraction of that right now.
10:37 | Shipping produces about 3% of global emissions, just behind aviation and more than all US coal plants. But while these sectors get regularly denounced, shipping has escaped scrutiny.
9:02 | More and more solar panels are popping up all over the world – and it’s easy to see why: They provide clean energy at falling prices. But there are also some not-so-green sides to this technology.
10:17 | How does Bangladesh keep its citizens safe even as the planet heats up? And what can rich countries learn from it?
7:33 | Some companies are trying to make a carbon difference by manufacturing products made out of pollution. But is it really helping?
12:19 | Agriculture accounts for 17 percent of worldwide CO2 emissions. But what if there were a way to produce it without harming the planet?
14:16 | With wind almost always blowing on sea, there is no lack of power. But the technology is struggling with a bunch of other hurdles.
9:16 | Billions of unassuming rocks on the seafloor could help humanity save itself from the ravages of climate change.
12:46 | Everybody keeps telling us to cut our carbon footprints. So how guilty should I feel about my personal emissions? And what’s Big Oil got to do with it?
9:55 | Climate activists around the world are taking corporations and governments to court in climate litigation cases – and they’re winning.