
STEM careers are crucial to combat climate change
South Africa needs people with the skills to deal with climate change. Photo: Eric Vidal/Reuters
From April to June this year, three international days focus our attention on the environment and on humanity's responsibility to curtail the devastating effects of climate change on the planet.
International Mother Earth Day, commemorated on 22 April, raised awareness of the challenges to the wellbeing of the planet and the life it supports, under the theme of 'Our power, our planet' to champion renewable energy. International Day for Biological Diversity on 22 May aims to boost understanding of biodiversity issues, which include the planet's wide variety of plants, animals and microorganisms; and World Environment Day on 5 June is the largest global platform for environmental outreach and puts a spotlight on pressing environmental issues.
In light of these, together with the global warming reality that South Africa and the world is experiencing and our clear need for environmental sustainability, it's worth considering how critically important it is to develop careers in ecology and the environment to ensure that efforts to meet the challenges of global warming and climate change increase at a quickening pace.
The STEM fields — science, technology, engineering and maths — are crucial to efforts to combat climate change, as they have been for many years. Scientists in a wide range of fields and professions play a key role in both our understanding of global warming and in addressing the effects. The causes, impact and potential solutions to the issues can only be adequately managed by people with intensive and relevant research, knowledge, education and skills.
Engineers develop strategies to help communities adapt to the effects of climate change, such as flood defences, coastal protection and appropriate urban planning. They must also ensure that all infrastructure is resilient to the effects of climate change.
Scientific learnings and data ensure that mitigation technologies are developed that will go a long way towards combating climate change. Technology is of course vital to finding new ways to tackle problems and innovate for a green future, which means that technologists in numerous fields are needed to join the efforts to ensure the good health of our planet in years to come.
The fact is that on South Africa's fairly extensive list of scarce skills are geologists, marine biologists, conservation scientists, environmental scientists, environmental engineers, environmental economists, climate change modellers, soil scientists, solar and wind energy specialists and sustainable energy engineers — and this is just a small sample.
This means that investment in the development of these careers is necessary and while many organisations, corporates and individuals throughout South Africa are heeding the call to address the needs of our environment head-on, a lot more can and must be done.
We face numerous challenges in South Africa, but protecting and ensuring the health of our environment — from one end of the country to the other, in our oceans and rivers, below ground and the air we breathe — must rate as among the most pressing needs that we and future generations must address. We can work together to assist young people to be well equipped to tackle the needs of the world they will live and thrive in.
Balan Moodley is the chief executive of Protec, an independent NPO that provides education support primarily to disadvantaged learners and teachers in STEM-gateway subjects as well as English and World of Work life skills training.
Hashtags

Try Our AI Features
Explore what Daily8 AI can do for you:
Comments
No comments yet...
Related Articles

TimesLIVE
7 days ago
- TimesLIVE
Bail hearing over smuggled fungus scheduled for Chinese researcher
A Michigan court has scheduled a bail hearing on Thursday for a Chinese researcher accused of smuggling biological samples into the US. Yunqing Jian, 33, and her boyfriend Zunyong Liu, 34, who conducted biological studies in the same field, were accused of smuggling a fungus into the US for research. Jian, who according to a federal criminal complaint has worked on research projects in the US since 2022, made her first court appearance on Tuesday. Liu was denied entry into the US last July, when the pathogen, a fungus identified by the US department of justice as Fusarium graminearum, was found in his luggage. Liu said he wanted to conduct research on the fungus at a University of Michigan laboratory where Jian worked, according to the complaint. Prosecutors described the fungus as a dangerous biological pathogen that had the potential to be used as an agricultural terrorism weapon. The fungus is already widespread on US farms, tested for and tightly controlled in grains, and is not considered dangerous unless consumed in large quantities. Clair Keene, an agronomist at North Dakota State University, said she was puzzled by US authorities' description of the fungus. 'It's a common pathogen. We have it here. The claim that Fusarium graminearum can be used as a biological weapon doesn't strike me as accurate,' she said. The fungus can cause Fusarium head blight, typically known as scab. It is common among wheat, barley and other grains, especially during rainy years. The telltale salmon-pink streaks on the grain heads contain a toxic byproduct called vomitoxin, which in high quantities can cause nausea and vomiting when eaten. Keene said farmers often spray fungicide to protect their crop and researchers have developed strains of wheat that are resistant to the fungus. Reuters was unable to contact Jian or her lawyer for comment. The case involving the researchers comes as the University of Michigan and other universities have faced pressure from the Trump administration over allegations they have done too little to combat anti-Semitism on campus and what the administration depicts as radical ideology in the classroom. Universities' ties to China also have come under scrutiny. The University of Michigan said in a statement it condemned 'any actions that seek to cause harm, threaten national security or undermine the university's critical public mission'. 'It is important to note that the university has received no funding from the Chinese government in relation to research conducted by the accused individuals,' the university said, adding it will 'continue to co-operate' with federal law enforcement in its ongoing investigation and prosecution. FBI director Kash Patel said in a post on X that the case was a reminder that China's ruling Communist Party 'is working around the clock to deploy operatives and researchers to infiltrate American institutions and target our food supply, which would have grave consequences ... putting American lives and our economy at serious risk.' In response to a request for comment, the Chinese embassy in Washington sent a statement from its spokesperson Liu Pengyu. 'I don't know the specific situation, but I would like to emphasise that the Chinese government has always required overseas Chinese citizens to abide by local laws and regulations and will also resolutely safeguard their legitimate rights and interests,' Liu said.

TimesLIVE
04-06-2025
- TimesLIVE
Scientists in Japan develop plastic that dissolves in seawater within hours
Researchers in Japan have developed a plastic that dissolves in seawater within hours, offering a potential solution for the scourge polluting oceans and harming wildlife. While scientists have long experimented with biodegradable plastics, researchers from the Riken Centre for Emergent Matter Science and the University of Tokyo said their new material breaks down much more quickly and leaves no residual trace. At a lab in Wako city near Tokyo, the team demonstrated a small piece of plastic vanishing in a container of salt water after it was stirred for about an hour. While the team has not yet detailed plans for commercialisation, project lead Takuzo Aida said their research has attracted significant interest, including from those in the packaging sector. Scientists worldwide are racing to develop innovative solutions to the growing plastic waste crisis, an effort championed by awareness campaigns such as World Environment Day taking place on June 5. Plastic pollution is set to triple by 2040, the UN Environment Programme has predicted, adding 23-million to 37-million metric tons of waste into the world's oceans each year. "Children cannot choose the planet they will live on. It is our duty as scientists to ensure we leave them with the best possible environment," Aida said. Aida said the new material is as strong as petroleum-based plastics but breaks down into its original components when exposed to salt. The components can then be further processed by naturally occurring bacteria, thereby avoiding generating microplastics that can harm aquatic life and enter the food chain. As salt is also present in soil, a piece about 5cm in size disintegrates on land after over 200 hours, he said. The material can be used like regular plastic when coated, and the team are focusing their research on the best coating methods, Aida said. The plastic is non-toxic, non-flammable and does not emit carbon dioxide, he said.

IOL News
29-05-2025
- IOL News
Early whalebone tools show inventiveness of prehistoric people
A large projectile point made of gray whale bone from the Duruthy rockshelter, dated between 18 000 and 17 500 years ago, is pictured in Landes, France. Image: Alexandre Lefebvre / REUTERS Will Dunham Artifacts found at archeological sites in France and Spain along the Bay of Biscay shoreline show that humans have been crafting tools from whale bones since more than 20 000 years ago, illustrating anew the resourcefulness of prehistoric people. The tools, primarily hunting implements such as projectile points, were fashioned from the bones of at least five species of large whales, the researchers said. Bones from sperm whales were the most abundant, followed by fin whales, gray whales, right or bowhead whales - two species indistinguishable with the analytical method used in the study - and blue whales. With seafaring capabilities by humans not developing until thousands of years later, the Ice Age hunter-gatherers who made these implements would have been unable to actually hunt whales for their resources in the Bay of Biscay, a gulf of the Atlantic Ocean. "These whales were likely opportunistically acquired from stranded animals or drifted carcasses, rather than actively hunted," said biomolecular archaeologist Krista McGrath of the Autonomous University of Barcelona, co-lead author of the study published in the journal Nature Communications. "The majority of the bones were identified from offshore, deep-water species - such as sperm whale and fin whale - which would have been very difficult to hunt for these prehistoric groups. And there is no evidence from this time period that they had the level of technology that active hunting would have required, like seafaring boats," McGrath said. The 71 whale bone artifacts analyzed by the researchers were found at 27 cave or rock shelter sites. The two oldest ones, both from the bones of fin whales, came from the Spanish Cantabrian sites of Rascaño, dating to about 20 500 years ago, and El Juyo, dating to about 19 800 years ago. The rough age range of the artifacts was from 14 000 years old to more than 20 000 years old, but most were 16 000 to 17 500 years old. The main raw material used to manufacture spear points at the time was antler from reindeer or red deer because it is less brittle and more pliable than land mammal bone. But whale bone offered some advantages, including its large dimensions, with some of the projectile points measuring more than 40 cm long, a size difficult to achieve using antler. "They can be very long and thick, and were probably hafted on spear-style projectiles rather than arrows. They are usually found as fragments, many of which bear fractures related to use, and they were most likely used to hunt the main game animals of the time - reindeer and red deer, horse, bison and ibex," said archaeologist and study co-senior author Jean-Marc Pétillon of the French National Centre for Scientific Research. Bone tools were used by members of the human evolutionary lineage dating back far before our species Homo sapiens emerged more than 300,000 years ago in Africa. The artifacts examined in this study pushed back the oldest-known use of whale bones for tool making by 1 000 to 2 000 years. The objects were previously discovered at the various sites and kept in museum collections. The researchers used modern analytical techniques to determine the species from which the bones came and the age of the artifacts. Humans living in this period of prehistory generally were inland hunters, obtaining most of their subsistence needs from the hunting of large hoofed mammals, Pétillon said. The new findings enhance the understanding of their exploitation of seashore resources, Pétillon added. Previous research had shown that Ice Age people gathered seashells, hunted seabirds and fished for marine fishes as a complement to meat from terrestrial animals. "The new findings tell us that these prehistoric groups were likely very well adapted to these coastal environments, and very likely had deep local ecological knowledge and understanding of their coastal habitats," McGrath said. "Whale bones would have been for more than just making tools. There is evidence for their use as fuel as well - the bones contain large amounts of oil - among other things. And the rest of the whale would also certainly have been used – teeth or baleen depending on the species, meat, skin. A single whale provides a lot of resources," McGrath said. | Reuters