Carbon dioxide | The Optimist Daily: Making Solutions the News
Today’s Solutions: July 19, 2024

Ocean waves breaking into cliff

This is the world’s first ocean carbon-removing machine

Cutting greenhouse gas emissions at the source should be the main goal when tackling climate change, but the most recent IPCC report also recommends carbon capture and storage technologies as key parts of the effort to limit global warming to 1.5°C. The startup Heimdal is well aware of the need Read More...

Landscape on Mars. Scenic desert scene on the red planet in a 3D space illustration.

The strange sounds of Mars have been recorded for the first time

If you’ve ever wondered what Mars sounds like, then NASA’s Perseverance rover has answers for you! The robot landed on the Red Planet in early 2021 where it has been conducting experiments and collecting samples for scientists here on Earth to analyze. We’ve previously reported on its 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...

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...

Nature's Giants- Icebergs in Greenland, under summer’s permanent daylight. What we see often is only a fractional part of what it really is. The whole truth is often hidden from view.

Submarine to explore the underside of Greenland’s glaciers in a first

Scientists are desperately trying to save the world’s glaciers. As they hold a large amount of water and carbon dioxide, it is essential that we slow the demise of these structures for the climate's sake. We’ve previously written about a group using special mountain blankets on Mount Titlis Read More...

View of a building with windows and greenery along the side.

Here’s how we can make buildings that capture and store CO2

If we are to successfully reverse the effects of climate change, then we must thoughtfully construct buildings that soak up carbon dioxide rather than produce it. But in order for that to happen, the building trade needs to redirect its focus. So much of the focus of "green buildings" is on Read More...

Scientists in lab coats looking at a vial

Liquid metal turns CO2 emissions into solid carbon at the source

Capturing carbon dioxide before it reaches the atmosphere is a key part of our global strategy to combat climate change. In an effort to find ways that could help us do that efficiently, scientists at RMIT have developed a method that quickly converts carbon dioxide into solid carbon, which can Read More...

Carbon capture facility with ventilators on top

New carbon capture facility will remove 1m tons of CO2 from the air yearly

We have previously written about emerging carbon capture technologies and their potential to help us tackle climate change. Now, we’re thrilled to share with you a real breakthrough in our efforts to cut the amount of greenhouse gas emissions in the atmosphere. Scotland is set to become home to Read More...

Factory with polluting emissions with ocean in the background

New technology uses seawater to remove carbon from the atmosphere

The ocean absorbs about a third of the CO2 that humans create when burning fossil fuels. While that’s good news for the air, capturing so much extra carbon dioxide makes ocean waters more acidic, harming marine life. Enter Ebb Carbon, a startup that wants to reinforce the ocean’s ability to Read More...

The role of whale conservation

The role of whale conservation in tackling climate change

While we tend to think of forests as the world's primary natural carbon sinks, that’s only true on land. When it comes to our oceans, a huge carbon sink comes in an unexpected form: whales. That’s right, these amazing mammals store humongous amounts of carbon dioxide in their bodies as they Read More...