TABLE 3.
Context of annual carbon sequestration impacts if glyphosate use were banned: car equivalents.
| Crop/trait/country | Permanent additional carbon dioxide emissions arising from higher fuel use (million kg of carbon dioxide) | Permanent additional emissions from extra fuel use: as average family car equivalents added to the road for a year (1000 USD) | Potential loss of soil carbon sequestration (million kg of carbon dioxide) | Soil carbon sequestration losses: as average family car equivalents added to roads for a year (1000 USD) |
|---|---|---|---|---|
| HT soybeans | ||||
| Argentina | 739 | 329 | 7,496 | 3,332 |
| Brazil | 501 | 223 | 5,082 | 2,259 |
| Bolivia, Paraguay, Uruguay | 170 | 75 | 1,722 | 765 |
| US | 528 | 235 | 2,840 | 1,262 |
| Canada | 47 | 21 | 247 | 110 |
| HT maize | ||||
| US | 387 | 172 | 5,495 | 2,442 |
| Canada | 19 | 8 | 54 | 24 |
| HT canola | ||||
| Canada | 191 | 85 | 964 | 428 |
| Total | 2,582 | 1,148 | 23,900 | 10,622 |
Notes: Assumption: an average family car produces 150 grams of carbon dioxide per km. A car does an average of 15,000 km/year and therefore produces 2,250 kg of carbon dioxide/year.
Source: Derived from Brookes G and Barfoot P1.