Gt
gigatonne
Massexact by definition
The gigatonne is one billion tonnes, exactly 10¹² kilograms. It is the unit of the global carbon cycle: human fossil fuel combustion releases roughly 37 Gt of CO₂ a year, and the Greenland ice sheet has been losing a few hundred Gt a year.
| 1 Gt | 1,000,000,000,000 kg |
Solvers that use mass