All posts: Science


Explainer

“There are no jobs on a dead planet!” goes the old slogan. Environmental degradation is a serious risk to economic growth.

Explainer Photograph of an intricately patterned glass dome, taken from underneath

The main greenhouse gas is carbon dioxide (CO2), produced by burning fossil fuels. South Africa is the biggest emitter of greenhouse gases on the African continent.

Explainer Young crops growing from soil in a field

Nitrous oxide (N2O) is a greenhouse gas (GHG), more commonly known as laughing gas. While N2O rarely makes headlines, it is a dangerous driver of climate change.

Explainer Blue and white infographic showing how hydrogen (H2) can power transportation and buildings

South Africa’s Low Emission Development Strategy 2050 is the country’s most recent emissions reductions plan.

Explainer Lorry body containing compressed methane

Hydrogen is a fuel source that is a possible alternative to fossil fuels. It can be used in fuel cells and to create heat, and its only by-product is water, meaning it does not release any greenhouse gases when burned.

Explainer Hydrogen powered silver car in showroom

Hydrogen is gaining international attention as a potential green alternative to fossil fuels. This is because hydrogen can be “green” when produced using renewable sources.

Explainer Power station emitting clouds of smoke and pollutants into the air

Carbon dioxide is a chemical compound that presents as a gas in the Earth’s atmosphere. It consists of one carbon atom and two oxygen atoms.

Explainer NASA photo of the Earth at night as seen from space

Greenhouse gases are gases that trap heat in the atmosphere. This can be any gas that absorbs infrared radiation and contributes to the Earth’s warming or the greenhouse effect.

Explainer Natural gas pipelines and gas 'flaring' flame emitting black smoke

Since 2006, the amount of gas in the atmosphere has increased, according to NASA. The oil and gas industry has caused the majority of methane gas emissions since 2006, NASA says.

Explainer Large biogas facility containers

Biogas is a renewable energy source produced when anaerobic bacteria break down organic materials. It is different from natural gas as natural gas is a fossil fuel, while biogas is a renewable energy source.

Explainer white and black tank containing hydrogen

In August 2021, South Africa’s National Business Initiative (NBI) published a government-backed report. It described the pathways that the country must take to decarbonise.