Today’s Solutions: April 20, 2026

Energy

Transitioning to a world powered by renewable energy is key to tackling climate change. Here you can find the latest good news related to our clean energy transition, covering wind, solar, green hydrogen, hydropower, and more.

Old apartment building in Germany retrofitted with Ecoworks

These prefab facades could make old buildings carbon negative

Retrofitting buildings so that they consume less energy is key to meeting current climate targets. A company in Germany is working to accelerate that process by building tailored facades with built-in insulation that can fit like a glove onto old buildings to reduce their energy use. Prefab Read More...

Solar panel at night

Nocturnal solar panels: not an oxymoron

While trying to do the impossible might seem like magical thinking, in many cases, it is simply science that hasn’t broken through yet. In the case of solar panels, it might seem counterintuitive to try to use them at night. This too, though, has been proven possible.  An engineering team Read More...

German Energy Indpendence

Germany accelerates schedule to become carbon neutral

People are more animated than ever before for green energy and calling on their governments to aim bigger. And it seems like they're listening. With increasing gas prices from the war in Ukraine and scientists' warnings about climate change, governments realize the need for a speedier change to Read More...

This chemical treatment makes

This chemical treatment makes plastic waste absorb CO2

BY THE OPTIMIST DAILY EDITORIAL TEAM A huge focus of research in scientific fields is to make things more efficient. This can mean simplifying designs and reducing energy consumption, or it can mean doing two things at once. In the case of researchers from Rice University, they are doing two Read More...

Pluto

Turns out there are ice volcanoes on Pluto. Here's how they work

We learn more fascinating and otherworldly things about our universe the farther out into space we explore. Some of our discoveries bend our understanding of science, and some completely baffle us. This is the case now that scientists have confirmed that there are, in fact, ice volcanoes on Read More...

honeycomb solar panel

Ultrathin "honeycomb" solar panels achieve record efficiency

One day, cities and hopefully everything else will be powered by renewable resources like wind and solar. To do that, though, we will need to continue to improve on our renewable tech, like creating solar panels that can absorb solar energy in many different levels of sunlight. A new development Read More...

Broken solar panel

How do solar panels break? And how do we fix them?

At the National Renewable Energy Laboratory (NREL) in Golden, Colorado, teams of scientists and researchers spend large parts of their day jumping on, twisting, smashing, and generally coming up with various ways of breaking solar panels.  It’s not malice, it’s not incompetence. It's not Read More...

The Red Planet

Refueling on Mars: making biofuel from astronaut wastewater

As space exploration develops further, scientists and engineers are innovating more outlandish ways for humans to survive beyond our planet. What was once magic becomes science as experts think outside the box and brilliantly repurpose resources in closed environments, such as growing lettuce in Read More...

Quantum charging could cut EV

Quantum charging could cut EV charging from hours to minutes

Current owners of electric vehicles can cruise along knowing that they’re not adding any CO2 emissions into the atmosphere. While they can ride guilt-free, these joy rides can still be inconvenienced by the headache of having to wait around half an hour at a high-powered public charger, or even Read More...

Wastewater energy

Oregon wastewater facility makes its own power with human waste

Two weeks ago, we wrote a piece on upcycling your “business,” going into the green uses some companies found for human waste. Innovation and recycling mean looking everywhere possible for solutions, and The Optimist Daily loves writing about the ones that are found… even if they come out of Read More...