What is the 100 year for Carbon Dioxide?
CREATE TABLE table_21350772_2 (gas_name VARCHAR)
SELECT 100 AS _yr FROM table_21350772_2 WHERE gas_name = "Carbon dioxide"
### Context: CREATE TABLE table_21350772_2 (gas_name VARCHAR) ### Question: What is the 100 year for Carbon Dioxide? ### Answer: SELECT 100 AS _yr FROM table_21350772_2 WHERE gas_name = "Carbon dioxide"