Today’s Solutions: December 17, 2025

Science

From mathematics and AI to medicine and psychology, The Optimist Daily features the latest news on discoveries, technological advances, and breakthroughs in the world of science. Our Science section is here to engage and enlighten you.

“Australia’s use o

"Australia's use of coal is falling and that is not a bad thing"

Australia’s new environment and energy minister, Josh Frydenberg, says coal will be a declining part of Australia’s energy mix because of inexorable market forces – but he insists the Coalition’s much criticised Direct Action policy is up to the mark, and will allow Read More...

Water: America’s largest

Water: America's largest renewable source is only getting bigger

Hydropower may not get as much attention as solar and wind get, but it’s actually America’s single largest renewable energy source. Hydropower currently produces six percent of the total energy needs of the U.S., and there is much potential to increase the electricity-generating capacity as a Read More...

From wasteland to solar park:

From wasteland to solar park: What Ukraine plans to do with Chernobyl

Ukraine will soon generate power again in the 1,000 mile square exclusion zone that surrounds the site of the Chernobyl atomic fallout, but this time it won’t be nuclear energy. With the land being so cheap and high-voltage lines already in place, the Ukranian government plans spend $1.1 billion Read More...

Mercedes challenges Tesla with

Mercedes challenges Tesla with its own electric-truck pledge

Mercedes-Benz outlined plans to start selling an electric heavy-duty truck in about five years, a week after Tesla Motors Inc.’s initial sketch on battery-powered commercial vehicles failed to impress investors. The 26-metric-ton Mercedes-Benz Urban eTruck will have a range of about 200 Read More...

Electric car economics are sho

Electric car economics are showing some sparks

Pushed by federal regulations, automakers are spending billions to develop new all-electric cars. But with gas prices staying relatively low, consumers aren't buying the electric offerings available now. Except for the glamorous and expensive Tesla Model S, electric vehicle sales for the first half Read More...

New electric car battery deliv

New electric car battery delivers lots of power with little weight

The lithium-air batteries found in electric cars haven’t quite reached their full potential yet. They degrade rather quickly and waste a lot of energy input as heat, but scientists may have found a better way to power clean energy vehicles. Scientists have engineered a lithium-oxygen battery that Read More...

Clean energy gets set for take

Clean energy gets set for takeoff in Abu Dhabi as solar plane ends journey across world

History was made this week in the world of clean energy transportation when the Solar Impulse 2 completed its flight across the world in Abu Dhabi without using a single drop of fuel. Perhaps it may seem odd that the solar plane landed in one of the world’s biggest oil producing countries, but Read More...

Porsche to create more than 1,

Porsche to create more than 1,400 jobs for electric car

Germany Porsche will boost the number of jobs for its first all-electric model by more than half from previous targets as part of parent Volkswagen's (VW) push to overcome its emissions scandal by embracing zero-emission cars and digital services. Porsche, the No. 2 contributor to VW group profit, Read More...

D.C. will get 50 percent of el

D.C. will get 50 percent of electricity from renewables by 2032

The nation’s capital will get half of its electricity from renewable sources by 2032, officials announced Monday. The new, 50 percent renewable portfolio standard will require the District’s utilities to increase electricity from sources such as wind and solar from the current goal of Read More...

Audi is trying to beat Tesla a

Audi is trying to beat Tesla at its own game

Audi's ramping up its electric car plans and hopes to have three models by 2020. It'll also form a new subsidiary to work on autonomous cars. The company's chief executive Rupert Stadler told Reuters that Audi's renewed push for electric cars is a direct result of the emissions scandal that Read More...