Problem is the word "believe"
I don't believe in Gravity, it is a fact.
I don't believe I need Oxygen, it is a fact I need it.
I don't believe Earth is spherical, it is a fact it is.
I don't believe in an Accelerated-Man-Made-Climate Change, it is a Fact.
This cannot be a belief system, it is not spirituality or religion. The most popular argument against it is - "It always was changing, so this is a scam". You are half right. It was always changing. There have been Ice samples taken to measure this climate change from both sides of the poles. And the increase in global average temperature since the end of the last ice age is 4 to 5-degree. However, in past that change occurred over a period of about 7,000 years. Currently, the same rise of CO2 is around 40% in just the past 200 years, due to humanity's contribution to the planet’s.
7,000 yrs vs 200 yrs is us. Not nature, not the planet or anything else.