Waterford Kamhlaba UWCSA, one of the first multi-racial schools in southern Africa, has placed sustainability at the core of its vision. As it celebrates 60 years of existence this year, the school is accelerating its sustainability efforts; already achieving some key milestones in this journey. Key projects already underway include water purification and harvesting, greywater … [Read more...]
Northern Cape learners win renewable energy challenge
St Anna Private School’s “Green Queens,” from the Northern Cape Province, have won the inaugural (2023) Renewable Energy Challenge (REC) national final hosted at the Enlit Africa conference last week. The REC was open to Grade 9 - 11 learners at climate club host schools in the Eastern, Northern and Western Cape as part of the Active Climate Change Citizenship for a Just … [Read more...]
SA’s untapped potential for off-grid biogas energy
Ahead of the imminent launch of the South African Waste to Energy Roadmap, a new report has found that the micro-digester sector has significant opportunities to grow if it can strengthen partnerships within the sector and with stakeholders in allied sectors. This study, commissioned by the South African National Energy Development Institute (SANEDI), has uncovered untapped … [Read more...]
Making heating and cooling energy efficient
A Day of the year has been allocated to the power of the sun thanks to the UN Environment Programme (UNEP). International Day of the Sun on 03 May is meant to recognise and promote the expansion of this abundant renewable energy resource. International Day of the Sun also coincides with a major research collaboration to identify the optimal thermal technologies that … [Read more...]
Rethinking the concept of weeds in your garden
Claude Lévi-Strauss, the French Anthropologist, was not known as a gardener. His claim to fame was the concept that the logic of cultural archetypes and myths (our world view) were structured around binary oppositions such as raw vs. cooked, edible vs. inedible, and, in Trumpian America, truth vs. alternative facts (better known as lies). “The gardener’s framework revolves … [Read more...]
Cool clean tech to tackle climate change
South African entrepreneurs are taking climate change seriously: Water filters made from macadamia nut shells, a mobile solar-powered kiosk for charging phones in off-grid areas, vegetable growing systems using recycled plastic bags, and a machine that turns any type of waste into energy (gas) or diesel. At the SEED South Africa Symposium held in Pretoria recently, … [Read more...]
Bringing food security to low income housing in Joburg
Green Acre Living has identified 700 low income households and works to enable these homes to achieve sustainable food security. Methods taught through training sessions, weekly workshops and a mentoring process are based on agroecology principles. Urban food security is an ongoing challenge against the backdrop of high unemployment rates of 25%, a faltering economy, ongoing … [Read more...]
Future path towards sustainable cooking in the global south
The role of renewable electricity for the cooking sector in the Global South has been widely underestimated. As the costs of Renewable Energy technologies continue to decline, cleaner and more modern technologies represent an entirely new pathway towards sustainable cooking in developing countries. These are the findings of the new report ‘Beyond Fire’ launched by the … [Read more...]
Rekindling our sacred connection with the soil
We are at the cusp of empires falling and worlds colliding. While this may be a bold statement. In the seeming chaos of collapsing economies, unprecedented and endless wars, unpredictable weather patterns and huge animal die-offs, our most appropriate response appears to be some sort of foundational re-structuring. We find ourselves at the foundations of a new reality, a New … [Read more...]
Finding smart insulation for a hot house
Another summer almost over … hope to goodness the worst heat is over. How clueless was the building industry about energy efficiency when most of our houses were built! Who does not want to save energy now – and it is indeed all our duty to relieve the pressure on the national energy supply. Our double storey really cooks upstairs, where we work. Ancient traces of insulation … [Read more...]
Employing aliens to capture carbon
Imagine turning thirsty alien invasive trees into biochar. Biochar is charcoal created by pyrolysis of biomass. This differs from charcoal only in the sense that its primary use is not for fuel, but for biosequestration or atmospheric carbon capture. If created under specific conditions it can also be suitable as a soil amendment. In a forest near Pietermaritzburg there is … [Read more...]
Being the change we want to see
A small group of environmental activists and food growers have started the Mpophomeni Conservation Group (MCG) under the auspices of Midlands Conservancies Forum. They host walks and talks, screen environmental movies and facilitate the Mpop Kidz Club which meets after school a couple of times a week, with support from N3 Toll Concession. MCG plan to inspire others in their … [Read more...]
Let the sun do your braai!
The Sun: it rises each day unpaid and taken for granted. Few places in the world are as blessed with such richness of Sunlight as Southern Africa, and to say that South Africans like to Braai is a colossal understatement. We are obsessed with braaing – something about being outside in our beautiful climate with friends and family, hatching adventure plans or discussing recent … [Read more...]
