What's the scam? There's no climate crisis? Or today's world leaders are just hypocrite because they care more about their own acquaintance's interest/power/mo

What's the scam? There's no climate crisis? Or today's world leaders are just hypocrite because they care more about their own acquaintance's interest/power/money than the future of our climate? If the latter, why not decry the leaders' behavior / ideology?