Technology
![A sand battery began to heat houses with accumulated green heat in Finland](https://ecopolitic.com.ua/wp-content/uploads/2022/11/5C71BD70-E4B0-4734-AC51-98D9671FCAB1-500x313.jpeg)
Although a sand battery stores 5-10 times less energy per unit volume than a chemical battery, it is a more cost-effective solution
![Experts have prepared TOP tips that will make an ordinary smartphone energy efficient](https://ecopolitic.com.ua/wp-content/uploads/2021/04/shutterstock_594829253-500x334.jpg)
Ukrainians were advised to install energy-efficient "wallpaper"
![Kyiv residents will be notified of air quality deterioration in the Kyiv Digital application](https://ecopolitic.com.ua/wp-content/uploads/2022/10/C7C69D5B-286D-489F-A1C6-E2C72D5301EE-500x313.jpeg)
In the case of receiving such a message, Kyiv residents are advised to postpone long walks and refrain from physical activity
![Hydrogen trucks have appeared at mines that can help decarbonize the industry](https://ecopolitic.com.ua/wp-content/uploads/2022/10/Znimok-ekrana-2022-10-17-o-10.55.18-500x277.png)
Decarbonizing the industry goes beyond the quarry trucks themselves and depends on how raw materials are sourced, created and manufactured
![Bitcoin is as damaging to the climate as beef](https://ecopolitic.com.ua/wp-content/uploads/2022/10/shutterstock_1525549592-500x335.jpg)
The cost of the total climate damage caused by all bitcoins from 2016 to 2021 could reach $12 billion
![7 US states have formed a hydrogen coalition to decarbonize trucks and cargo ships](https://ecopolitic.com.ua/wp-content/uploads/2022/10/shutterstock_2173046069-500x286.jpg)
The coalition may receive funding from the US Department of Energy under the clean hydrogen centers program
![Ex-engineer SpaceX wants to get solar energy at night from space mirrors](https://ecopolitic.com.ua/wp-content/uploads/2022/09/309325604_460504639440821_6647761683923336776_n-500x281.jpeg)
An uncontrolled amount of redirected light can harm nature
![China want to produce solar energy in the space](https://ecopolitic.com.ua/wp-content/uploads/2021/06/shutterstock_1930289213-500x244.jpg)
The use of solar energy from space is attracting the attention of industry and scientists from around the world
![A resident of Ternopil came up with a way to heat a house for free with the help of the sun](https://ecopolitic.com.ua/wp-content/uploads/2021/05/shutterstock_1517216711-500x335.jpg)
Such a heating system heats three rooms with an area of 78 m2 in half an hour
![Australia to produce hydrogen from air](https://ecopolitic.com.ua/wp-content/uploads/2021/07/shutterstock_1938738706-500x267.jpg)
The efficiency of converting solar energy into hydrogen is more than 15%
![The world's first hydrogen trains hit the roads in Germany](https://ecopolitic.com.ua/wp-content/uploads/2022/09/alstom-hydrogen-train-Copy-500x281.jpeg)
Regional rail operator LNVG will no longer purchase diesel trains
![The USA invented a way to turn wind turbines into jelly bears](https://ecopolitic.com.ua/wp-content/uploads/2022/09/ogO1XrAPWVCpn5JwpBKuPgkpxtPdefYV1ft7anSe-500x281.jpeg)
This resin system can be used over and over again