Climate change doubters, this one’s for you.

If you think your daily latte is already pretty steep at $4 a pop, it could get much worse. Coffee is officially under threat, which means that, eventually, it will be harder to get hold of the good stuff – and it’ll be far more expensive when you get it.

Coffee lovers could also face poorer-tasting brews as rising temperatures and less rain makes it increasingly challenging to grow the precious beans, scientists from London’s Kew Gardens are predicting.

According to a new report published in science journal Nature Plants, coffee production in Ethiopia, the birthplace of the high-quality Arabica coffee bean and Africa’s largest exporter, could be in serious trouble over the next century unless action is taken.

Up to 60 percent of the areas used to grow coffee could become a completely unsuitable climate for the crop by 2070.

To put it simply, we’ve been consuming far more coffee than is being produced for three consecutive years, according to the International Coffee Organization.

But a coffee crisis wouldn’t just be disastrous for the world’s caffeine addicts. Coffee provides a livelihood for close to 15 million Ethiopians – 16 percent of the population – and accounts for a quarter of the African nation’s exports.

Scientists say a solution to the problem would be to relocate the farms, moving them to strategic areas at higher elevations which would allow coffee farmers to rely on land that would be more resilient in the face of changing climate conditions.

According to the study, “Timely, precise, science-based decision making is required now and over the coming decades, to ensure sustainability and resilience for the Ethiopian coffee sector.”

“In Ethiopia and all over the world really, if we do nothing there will be less coffee, it will probably taste worse and will cost more,” Dr. Aaron Davis, coffee researcher at Kew and one of the report’s authors, told the BBC.

Dr. Tim Schilling, director of the World Coffee Research Institute, says: “The supply of high-quality coffee is severely threatened by climate change, diseases and pests, land pressure, and labor shortages – and demand for these coffees is rising every year.”

“The logical result of that is that prices will need to rise, especially for the highest quality coffees, which are the most threatened,” Schilling added.