Some scientists have argued that clouds may play a more significant role in climate change than previously thought, and that their behavior may not be fully captured by current climate models. However, these claims are still being debated and there is no consensus on whether or not they are valid.
It is important to note that the scientific consensus on climate change is very strong, and that the vast majority of scientists believe that human activity is the primary cause of climate change. The IPCC has stated that "it is extremely likely that human influence has been the dominant cause of observed warming since the mid-20th century."