Petrol-flavoured Easter eggs launched as Chancellor backs North Sea drilling

As the Chancellor of the Exchequer has backed North Sea oil drilling, Climate Basecamp, co-founded by U.S. actor Rainn Wilson, and the Nature and Climate Impact Team (NCIT) have created a limited-edition Easter Egg designed to taste terrible. Petrol Egg has been created to confront consumers with a simple message… climate change is coming for the foods we love, chocolate is on the front line, and we haven’t lost sight of the key drivers of this.

Cocoa production is extremely vulnerable to rising global temperatures. The narrow equatorial band where cacao trees thrive is under increasing pressure from heat stress, shifting rainfall patterns and crop disease. Scientific projections suggest that major growing regions could become unsuitable for cocoa farming within the next thirty years, threatening a global supply chain worth tens of billions of pounds and the UK’s most cherished seasonal traditions.

The taste of chocolate is widely noted as having changed over the years as manufacturers get to grips with scarcity of ingredients, which has also led to the cost of chocolate increasing beyond standard inflation in recent years.

Gail Whiteman, Hoffmann Impact Professor and Founding Director at Climate Basecamp, said: “Chocolate is something we take completely for granted. Nobody opens an Easter Egg and thinks about fossil fuels accelerating the crisis. That’s exactly why this flavour exists. Petrol Egg isn’t just disgusting, it’s a symptom of what happens when we let the climate crisis run unchecked — cocoa prices quadrupled in 2024, bars are shrinking, and manufacturers are already replacing cocoa with substitutes. This is not a future scenario.”

The eggs are designed to provoke strong reactions, both in person and on social media. Climate Basecamp and NCIT expect the tasting challenge format to generate significant reach, with consumers filming their responses to the flavours and sharing them across platforms. The entertaining and shareable nature of the content is central to the campaign’s strategy: use humour and shock to cut through, then land the serious point about what we stand to lose.

Petrol Egg doesn’t explain climate change, it lets consumers experience it. By reframing cocoa through the language of flavour, ingredients and recipes, it turns a simple Easter egg into a guided journey through the real-world pressures climate change is placing on chocolate.

Rainn Wilson added: “I’ve eaten a lot of strange things in my life, but petrol-flavoured chocolate is a new low. Sadly, the idea behind it isn’t a joke. If we keep pushing the planet the way we are, the real future of chocolate could be a lot less sweet.”