To prevent global warming from reaching catastrophic proportions, we need to slash greenhouse gas emissions. The question is how. WISE researchers have a nano-sized solution: tiny balls that trap CO₂ emissions within smokestacks before they wreak climate havoc. 

For a number of years, investigators have recognized that porous carbon can adsorb CO₂. Now a team led by Waterloo’s Zhongwei Chen has developed a way to maximize that useful property. 

The researchers began by creating nanospheres…