DG:
As you know, climate is too complex for the winger mind. That's why you have Faux & Friends. Climate is not linear - it varies over time and conditions, but certain trends do have staying power depsite intervening events that cloud the picture.
Greenhouse gase have been increasing since the industrial revolution began in the mid 19th century. Due to industrial and population explosion, the pace recently has rapidly increased, the impact of which we will experience in the decades ahead when it will most likely be too late to reverse the trend.