Can we alter ocean chemistry to absorb carbon? Here are the pros and cons

Emilia Krupa/Getty As the planet warms, countries around the world are racing to meet their net zero targets set out in the 2015 Paris Agreement. To achieve this, we must collectively curb our net greenhouse gas emissions. These gases – the largest contributor being carbon dioxide (CO₂) – act as a cosmic blanket by trapping heat in Earth’s atmosphere. Scientists are investigating ways to lock up more atmospheric carbon in our oceans, forests and soils. One of the proposed methods is ocean…