In most cases, electrifying cars reduces their emissions
Today, road transport is responsible for 15% of the world’s total CO2 emissions. If we replace fossil-fuel-powered combustion vehicles with…
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Climate change and its impacts on the water cycle; how can it increase both droughts and heavy downpours?
If your tap ran dry and stores closed down, where would you get your freshwater? Water is essential to human…
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From vibrant corals to white skeletons: climate change and looming existential threats to coral reefs
Coral reefs and their ecosystems serve important roles on Earth – they flourish with biodiversity, providing habitat to 25% of…
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Sea-level rise: to mitigate or adapt? Experts say we need to do both.
Roughly 900 million people lived in low-lying coastal cities and settlements in 2020; a figure that is projected to reach 1 billion by 2050. Is there anything we can do now to reduce sea-level rise and its impacts? Our past actions will already impact sea-levels for thousands of years. But not everything is set in stone. We possess the power to reduce sea-level rise and its impacts over the next century and beyond with our current actions. Some advocate to mitigate the causes, and others to adapt to the consequences. But what do experts say?
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How fears of parasites drive viral claims for detoxes and cleanses
Removing parasites from the body is a recurring theme in health misinformation on social media. These posts misleadingly suggest that…
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How CO2 warms Earth through the greenhouse effect and why CO2 is not ‘saturated’ in Earth’s atmosphere
There is no doubt about it – climate science can be complex. But sometimes this complexity is mistaken for uncertainty.…
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Are claims linking recent U.S. trends in cancer diagnoses to COVID-19 vaccines plausible? A look at the available data
Since it takes several years to gather, verify, and consolidate cancer data at the national level, there’s no real-time way to monitor national cancer trends. Medical experts have also explained that there is no plausible mechanism or data that connect COVID-19 vaccines to cancer.
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How health problems after COVID-19 vaccination are sometimes used to feed misinformation narratives
While illness can occur shortly after vaccination, it doesn’t mean that the vaccine must be the cause. Illness can also occur simply by coincidence, since diseases have existed long before vaccines arrived. Part of evaluating whether a vaccine is the cause of an illness requires determining if vaccinated people are at a higher risk of the illness compared to unvaccinated people—something that anecdotes alone cannot provide.
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“Disease X”: How pandemic preparedness talks spawned conspiracy theories online
On 17 January 2024, public health experts including Tedros Adhanom Ghebreyesus, the Director-General of the World Health Organization (WHO), held…
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Variations on a theme: The evidence refuting the false claim that vaccines cause autism
While there has indeed been a rise in the number of autism diagnoses in the last decade, the evidence points not to vaccines as the cause, but to a broader diagnostic criteria of autism and increased awareness of the condition now as compared to the past.