We are not even doing halfway enough,

to come even close to doing what needs to be done,
to keep this planet okay for us humans
let alone all the other life

Even when emissions are stabilized at 90% below present levels at 2050, this 2.0°C threshold is eventually broken. Our results suggest that if a 2.0°C warming is to be avoided, direct CO2 capture from the air, together with subsequent sequestration, would eventually have to be introduced in addition to sustained 90% global carbon emissions reductions by 2050.
source

I just don't know what to say to this.

We need a kind of Manhattan project approach, worldwide. Not only for alternative energy, but also carbon capture because, really, we wont ever get to zero emissions, we'd be lucky if we only remained on even keel the way things are now. We desperately need more sensible approaches than seeding the oceans with iron filings or trying to create an artificial upwelling with pipes...

I know it's probably too late anyhow and on some level I'm accepting of what is going to happen (as a biologist, I can even appreciate the process and the logic) but I don't want to give up.
(anyhow, how can you give up when nobody really even started??!!)