Way more permanent than planting trees. It's not just planting trees, which can be cut down easily. It's something more permanent - mineral weathering or binding carbon in biochar. Those, who rely only on planting trees, look silly when compared to wren.

A key piece in the puzzle of solving climate change With my Wren membership, I'm helping fund a key piece in the puzzle of solving climate change—and that makes me feel good! My membership funds high impact projects like biochar and mineral weathering that permanently remove CO2. And I fund super high impact carbon offsets too. Most offsets from other companies are really sketchy, but Wren sends me updates with details on exactly how my funding fights climate change. I've trusted Wren now for over 3 years, and every few months they add new climate projects or impactful features for me to support.

Wren is exactly the platform I was looking for! Wren is exactly the platform I was looking for. I've been looking for a platform that allows me to donate to activities that mitigate greenhouse gas emissions over a broad category of projects (including lobbying, carbon capture, nature protection, emissions reductions, etc). You can track where you money goes. You can easily modify your donation amounts and focus. The only downside is the relatively large fraction of donations they keep for their operations. I guess this is the price to pay for a great web interface and all the research and coordination required to find new projects.

Wren – can't be more transparent Wren is a great way to really have a tangible positive impact on man-made climate change. You yourself can decide how much you want to spent – it even calculates how much you'd need to pay to offset your footprint entirely – and through the monthly updates that they provide you know exactly where your help is put into. I can only recommend it and it isn't even that expensive: I personally only pay 20€ per month to offset my entire CO₂ footprint and a little bit more. So when looking at our own and our kids future: This is not much to change the world for the better.

Wren is making a difference in big, important ways! I have supported Wren for some time now, and am impressed by the many projects they have brought on line to reduce emissions, transition to renewable resources. Recently I asked to switch my contribution to their tax deductible program, and the response to my request was prompt, personal and efficient. If you wish to be part of addressing climate change in productive ways, I recommend you check out Wren.