Reversing climate change ? It would mean climate stability, something that, in long term, doesn't really exist. But if you're talking about reversing the human impact on climate change the answer is yes, but we're not able to do so. It would require trillions of dollars of investment in climate mitigation, super strict regulation and a major hard shift in our way to live. Even if I'm environmentalist, I wouldn't want something like that happening.
At best, in a reasonable way, we can take some mitigation measures and plans to avoid the collapsing of human societies before the beginning of the XXII century. But as we know now that if we don't make major investments and take drastic measures in the next few years we're kind of doomed, we're switching our planning interest in adapating our societies and cities to climate change instead of fighting it directly.
We're still mitigating (except in some countries/places), but as we know that it's too late and it's already starting, we're adapting so we can protect as much as we can our economy, socities, landscapes, ... In Europe most of the adaptation measures are linked to water, either water scarcity or floodings depending on the place.
The last massive investor in mitigation is China. The Chinese policies are full of controversy, for decades they polluted like there's no tomorrow, and now it's been 3 years they're investing hundreds of billions of dollars every year in climate mitigation. On the other hand they're now a bit late in adaptation and we see more and more climate-related problems in Chinese cities.