Do we still have time? No. Are we past the tipping point? Most likely. I say 20 years tops now. Not just for civilisation, for life. All the news about the ecological collapse are about how conservative the models are turning out to be. Everything already is happening much faster than expected. We are done, well done.
Makes me feel sad and happy at the same time. At least all the bullshit will be over too.
Still, some glimmer of hope makes me want to try and lessen my impact on the environment, maybe you should do that as well. It will not change anything though.