Are environmental crises possible without human intervention?

Environmental crises without human intervention
An ecological crisis is a state of the environment that is dangerous for the further existence of any species or population of living organisms. An environmental crisis differs from a natural disaster in its global scope. For example, during a natural disaster (flood, earthquake, volcanic eruption), some of the animals and people living in the affected area die. But in other regions, these species survive. In the event of a crisis, the entire population dies out. And the most striking example here is the disappearance of dinosaurs. Consider the types of natural crises – those that have already occurred or may occur theoretically:

massive tectonic processes (volcanic eruptions and earthquakes);
collision of the Earth with a large celestial body;
processes on the Sun leading to strong warming or cooling;
a worldwide flood that can result from any of the above items.