I was involved peripherally with a project that provided solar ovens to grandmothers in Lesotho (because of AIDS grannies often end up looking after their grandkids). They were a tremendous problem in a country where deforestation and poverty are both major problems. BTW the solar ovens that are made in South Africa are paid for by the Raging Grannies group in BC, so a good connection between grandmothers.
Heading back to Lake Ontario for this summer. Ainia is back in North America for the first time since 2010. Currently in Long Island Sound.