Today’s Solutions: March 23, 2026

512 results for "carbon dioxide"

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...

3D rendering Earth in the outer space.

Signs of life discovered deep in the Earth

We all know that things happening below the Earth’s crust, the top layer in which humans inhabit, impact what’s going on above. From volcanoes to tsunamis, the huge tectonic plates beneath our feet are hugely influential. For the first time ever, scientists have discovered how life above has Read More...

Early Earth rocks

An extinct rock may’ve made life on Earth possible

By delving into our past, we afford ourselves ways to learn about our present and our future. Planetary scientists from Yale University have delved very deeply into our past and discovered perhaps how life was able to form on our planet.  Earth’s uninhabitable period In the first 500 million Read More...

co2 line graph being drawn in decline on a chalk board

This startup turns CO2 into jet fuel and plastics

The impressive Bay Area-based startup, Twelve, is on a mission to replace petrochemicals at a large scale so that it can significantly slash global energy emissions—something that we urgently need to do for our species’ survival. Converting CO2 into something useful How will they do it? Read More...

Algae production for sustainable biofuel at Wageningen University in the Netherlands

Europe’s first biorefinery uses algae to make jet biofuel

The global aviation industry is responsible for more than 2 percent of human-produced carbon dioxide emissions. To put a dent in that statistic, scientists have been actively searching for cost-effective and eco-friendly aviation fuels derived from natural resources. In recent years, microalgae Read More...

city trees

City trees may trap more CO2 than we thought

It’s becoming common knowledge at this point that trees greatly benefit cities and the people that call them home. City trees and urban green areas regulate temperature, improve mental health and reduce loneliness for urbanites, clean the air and even reduce crime rates. Our tall, green friends Read More...

Healthy soil and vegetables

Healthier soil means healthier food

We’ve written in the past about regenerative agriculture and how it benefits the planet. It’s a simple system of farming that involves plowing less, using cover crops, and diversifying to create healthier soil. The practice has made products that are 100 percent carbon negative, and it has Read More...

Ocean carbon capture

This system takes CO2 from the air by taking it from the sea

The world over, researchers and scientists are looking for effective and economical ways to pull CO2 out of the air to mitigate the effects of climate change. There are many promising solutions out there, but the amount of CO2 that needs to be withdrawn is substantial and the process of pulling it Read More...

Man watering a Maranta Leuconeura, Fascinator Tricolor, houseplant with a plant mister bottle.

Four ways to clean your house plants

Cleaning your plants may seem trivial, but there is scientific support behind keeping your leafy friends squeaky clean. The stomata and chlorophyll of plants, which absorb carbon dioxide and help perform photosynthesis, can be clogged and blocked by dirt and dust. Cleaning your plants helps ensure Read More...

Mirema community members replant tree

This Kenyan community regrew its forest

At The Optimist Daily, we love stories fighting deforestation or spurring reforestation. Forests are our friends. They host myriad wildlife, foster ecological diversity, consume carbon dioxide, and breathe out oxygen. They also do a lot of heavy lifting when it comes to reducing floods.  In Read More...