to find out how one seafaring country has begun to adapt, i'm going to hand you over to captain lewington's very, very icy. with 3,000 kilometres of coastline and nearly 300,000 islands, sweden plays host to a variety of sailing vessels. motor boats use fuel that creates greenhouse gases. they can leak petrol and they can cause noise pollution. so, i'm here to take a look at some electric boats that aim to overcome these problems, including one that doesn't cut through the waves, but glides above them. right, i'm following you. yes, come. under this 25—foot craft is a wing for hydroplaning and sensors that collect hundreds of data points every second. you'll have to take the passenger seat first. 0k. and then we'll let you drive. we need to stabilise it, much like a fighterjet. then we feel how we're oriented, where we are in the world, and then about 100 times per second, we are adjustable by twisting it and changing the angle to keep stable. this is where it gets exciting. let's go. wow! i can feel the sensation of the boat lifting up. it does actually feel like we're flying. and withou

i'm going to hand you over to captain lewington. it's icy out there. it's very, very icy.,000 islands, sweden plays host to a variety of sailing vessels. motor boats use fuel that creates greenhouse gases. they can leak petrol and they can cause noise pollution. so i'm here to take a look at some electric boats that aim to overcome these problems, including one that doesn't cut through the waves but glides above them. right, i'm following you. yes, come. under this 25—foot craft is a wing for hydroplaning and sensors that collect hundreds of data points every second. you'll have to take the passenger seat first. 0k. and then we'll let you drive. we need to stabilise it, much like a fighterjet. when we feel how we're oriented, where we are in the world, and then about 100 times per second, we are adjustable by twisting it and changing the angle of attack to keep stable. this is where it gets exciting. let's go. wow! i can feel the sensation of the boat lifting up. it does actually feel like we're flying. and without the hull in the water, it's using 80% less power than a bo

to find out how one seafaring country has begun to adapt, i'm going to hand you over to captain lewingtons exciting. let's go. engine whirrs wow! i can feel the sensation of the boat lifting up. it does actually feel like we're flying. and without the hull in the water, its using 80% less power than a boat would conventionally need. batteries are still no way close to the same energy density as gasoline. but as hydroplaning reduces friction, electric becomes a more viable energy choice. this feels beautiful. whilst most electric boats eat up more energy the faster they go, this consumes the same at five knots that it does at 20. on a full charge, it can hydroplane for two hours, covering 50 nautical miles at a sensible 20—knot cruising speed. and we can have a conversation like this. it's not like it's slamming in the waves. which is very sociable, and it also feels very smooth, like an electric car. you want to try it? i'd love to. ok, let's do it. that feels faster than you went. pull it down. i'm heading for the big waves. whoa — whoa! that was amazing! good work! i barely felt those.

to find out how one seafaring country has begun to adapt, i'm going to hand you over to captain lewingtonoats that aim to overcome these problems, including one that doesn't cut through the waves, but glides above them. right, i'm following you. yes, come. under this 25—foot craft is a wing for hydroplaning and sensors that collect hundreds of data points every second. you'll have to take the passenger seat first. 0k. and then we'll let you drive. we need to stabilise it, much like a fighterjet. then we feel how we're oriented, where we are in the world, and then about 100 times per second, we are adjustable by twisting it and changing the angle to keep stable. this is where it gets exciting. let's go. i can feel the sensation of the boat lifting up. it does actually feel like we're flying. and without the hull in the water, it's using 80% less power than a boat would conventionally need. batteries are still no way close to the same energy density as gasoline. but as hydroplaning reduces friction, electric becomes a more viable energy choice. this feels beautiful. whilst most electric boa

now it's time for click with spencer kelly and lara lewington.lot more mouths to feed. it's a perfect storm, and things are going to have to change. we've seen in the past how verticalfarming could play an important role in that, but it is still a pretty new technology. but laura goodwin has been to see a new piece of tech that could take vertical farming to the next level. a warm, sunny day like today is a gift for farmers, who very much rely on the climate and their own expertise to ensure their plants are healthy and happy. but what if they could control the climate? and what if they found a way that the plants could tell the farmer what they needed? one agritech company, gardin, thinks they've worked out how to do exactly this. well, what do we have here? one of our partner vertical farm facilities where we've installed our sensors. wow, look at all this! and it smells incredible. chillies on this side. got chillies here. we have some flowers down here — edible flowers. some strawberries. there's 25 trays high here, growing a number of specie