This is entirely up to you. The current amount of money donated so far for every project is indicated in the project list (right-most column) so that you can see anytime precisely which projects you can sponsor and how much you can donate.

You can choose to donate as much as you want, there is no minimum amount of money required because we believe that every little contribution can make the difference. You can also donate several times for the same project as long as some money is missing, and of course you can also sponsor different projects appearing on the list. In other words, you are entirely free to distribute your donation as you want.

When you checkout your donation, you will be redirected to Paypal which will proceed your payment securely, from a credit card or a PayPal account.

Usually, your money is not given directly to the farmer but rather to recognized and trustful partners (NGOs, universities etc.) operating in the regions of the trials you selected. These partners are in direct contact with the farmers and make sure your money is indeed used to buy the biochar needed by the farmers. However, this intermediary service is not financed by your donation which is entirely devoted to paying the biochar. The additional costs are covered by financial partners of Biochartrust or private donations (separate from the sponsoring system) which can be made through this website.