negative operations and have adopted sustainability as a core value. i am pleased to say i am joined by the inventor of the hashgraph algorithm. so good to have you. for those at home, explain why the environmental cost of cryptocurrencies is so high. so it s cryptocurrencies is so high. sr it s great cryptocurrencies is so high. 5r it s great that bitcoin gives people the ability to have decentralised money that they can spend without banks or anyone else in between. but it uses a lot of electricity, more than all of ireland every year. so this is not as green as you would like. so we have hadera hashgraph, which uses much more than 5 million times less according to the university couege according to the university college of london report. imilli college of london report. will the environmental cost eventually decreased when we use more renewable energy for these purposes? ida. use more renewable energy for these purposes? use more renewable energy for these purposes? no, because yo
you will be stopped. the home secretary has put it another way. stop more boats, or the uk will withhold £50 million of funding for the mission this year. translation: we know that britain has threatened - to cut their financial support. i am very clear, if they stop paying for their reservists, i will pull my men. britain and france are separated here by just 20 miles of sea. to a migrant, it looks easy to cross. to a government, easy to manage. lucy williamson, bbc news, northern france. every week at this time we take a look at climate change, bringing you a different story each week with implications for our planet s future. today we focus on the digital world, cryptocurrency and its environmental impact. bitcoin is often singled out for the vast energy it uses. bitcoin,
in the atmosphere, it has wings, it can use aerodynamic forces to manoeuvre, it can glide, it can dive, and that makes it harder to predict where it is going to go, harder to detect and harder to stop. how powerful is it? how much damage can it do, depending on what you load it with? it depends. it is a whole class of things, it can be very large, relatively small, it depends on the warhead. that fast, you can produce effects from the energy of the weapon itself, you can use the kinetic energy of the vehicle to supplement the impact effects. how do hypersonic capabilities differ from country to country? we are hearing about north korea and the us both having the capability, but i find it hard to believe they have the same level of capability, surely not? we don t know much about the north koreans, but i would guess it is not very sophisticated. the leaders in hypersonics right now are the united states, china and russia. other countries have also worked in the field. england has a long
roof. selling and buying to each other, rather than to a monopoly. so block chain, hadera hashgraph allows markets and decentralising, to get rid of the middleman to be more efficient. ., ., , , efficient. you have come up with hadera efficient. you have come up with hadera hashgraph - efficient. you have come up with hadera hashgraph to l efficient. you have come up - with hadera hashgraph to become carbon neutral. do you think the wider tech community has cottoned on to the fact that we have a climate emergency and they have a role to play, you have a role to play? i they have a role to play, you have a role to play?- have a role to play? i think so, we have a role to play? i think so. we are have a role to play? i think so, we are seeing - have a role to play? i think so, we are seeing a - have a role to play? i think so, we are seeing a lot - have a role to play? i think so, we are seeing a lot of. so, we are seeing a lot of interest in being carbon neutral, carbon negative. u
these purposes? no, because you could use those environmental. could use those environmental energies for something else. the best energy usage is the energy you don t use. so by using a lot less, that is greener. using a lot less, that is greener- using a lot less, that is greener. using a lot less, that is ureener. ., ., greener. how do we get the electricity greener. how do we get the electricity grid greener. how do we get the electricity grid to greener. how do we get the electricity grid to the - greener. how do we get the electricity grid to the point i electricity grid to the point where it is able to cope with the demand, as we are seeing more and more that society becomes cashless more? yes, a bi art becomes cashless more? yes, a big part is becomes cashless more? yes, a big part is to becomes cashless more? yes, a big part is to have becomes cashless more? yes, a big part is to have people - becomes cashless more? yes, a big part is to have people put. big part