Posting NY Times articles isn’t an argument. If you believe climate change is the main cause here, post a legitimate and peer reviewed study by people on the ground. This looks like you’re high on sensationalist doomerism.
The problem with the post is that Bengal Tiger != Indian Tigers. Bengal Tigers are a subspecies of tigers and not many of them are even in India.
The issues faced by Indian tigers was loss of habitat due to human encroachment (which will be worsened due to human migration due to climate change), whereas the major future threat to Bengal tigers, which live primarily in the low lying Sunderban areas of Bangladesh, is climate change.
So both things are true because we are talking about completely different groups of animals.