Picture Credits

Many thanks to all the great work by all creative people around!

Icons made by monkik from www.flaticon.com
Icons made by Pause08 from www.flaticon.com
Icons made by Smashicons from www.flaticon.com
Icons made by Freepik from www.flaticon.com
Icons made by xnimrodx from www.flaticon.com
Icons made by Eucalyp from www.flaticon.com
Icons made by phatplus from www.flaticon.com

Photo by Chris Nemeth on Unsplash,
slightly increased hue and saturation.

by WES. You can copy and redistribute the material in any medium or format, for any purpose, even commercially.

You must give appropriate credit to WES GmbH, provide a link to this website, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the WES GmbH endorses you or your use.

Image by Gerald Simon from Pixabay,
size cropped to fit page

Photo by Hermes Rivera on Unsplash

Photo by Darren Lawrence on Unsplash

hue and saturation slightly changed to more green

Photo by Leonid Danilov on Pexels

Chart by Energy Internaional Agency, 2nd y-axis added to better show the relations.

by WES. You can copy and redistribute the material in any medium or format, for any purpose, even commercially.

You must give appropriate credit to WES GmbH, provide a link to this website, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the WES GmbH endorses you or your use.

by WES. You can copy and redistribute the material in any medium or format, for any purpose, even commercially.

You must give appropriate credit to WES GmbH, provide a link to this website, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the WES GmbH endorses you or your use.

by WES. You can copy and redistribute the material in any medium or format, for any purpose, even commercially.

You must give appropriate credit to WES GmbH, provide a link to this website, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the WES GmbH endorses you or your use.

by WES. You can copy and redistribute the material in any medium or format, for any purpose, even commercially.

You must give appropriate credit to WES GmbH, provide a link to this website, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the WES GmbH endorses you or your use.

by WES. You can copy and redistribute the material in any medium or format, for any purpose, even commercially.

You must give appropriate credit to WES GmbH, provide a link to this website, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the WES GmbH endorses you or your use.

by WES. You can copy and redistribute the material in any medium or format, for any purpose, even commercially.

You must give appropriate credit to WES GmbH, provide a link to this website, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the WES GmbH endorses you or your use.

Photo by Yang Jing on Unsplash,, size changed to fit frame