Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
Name the total number for co 2 for atd/axr

### Inputs:
table_name: table, columns: ['Name', 'Volume', 'Engine', 'Fuel', 'Output', 'Torque', 'Engine ID code(s)', '0–100km/h,s', 'Top speed', 'CO 2', 'Years']

### Response:
SELECT COUNT CO 2 FROM table WHERE Engine ID code(s) = ATD/AXR