As the COP30 climate change conference unfolds in Brazil, a group of researchers in London is dedicated to addressing the challenges posed by our evolving planet, all while ensuring our caffeine cravings are satisfied.
London, recognized as the warmest area in the UK, is home to the Royal Botanic Gardens at Kew, where an innovative carbon garden has been established.
The team focused on trees has introduced two noteworthy species: Parrotia persica, commonly referred to as Persian ironwood, and Koelreuteria paniculata, known as the golden rain tree.
Meanwhile, the coffee research team is exploring crop varieties that can endure increased temperatures and arid conditions.
Kevin Martin, the head of tree collections at Kew, explained that their aim is to “showcase what we should consider for the future and which varieties we might cultivate in our gardens.”
He remarked on the difficulty of visualizing future warm climates, noting, “It’s November, and we’re experiencing temperatures in the double digits.”
“In normal years, we’d expect to be in the single digits, and these fluctuations are affecting our trees.”
He highlighted that certain trees are likely to transition into autumn much earlier than usual, resembling the false autumns seen in summer due to stress, which means we might not witness the vibrant color changes associated with fall.
Martin emphasized the necessity of exploring a wider range of plant options, stating that “we must broaden our horizons and move beyond our traditional selection of trees.”
He recommended species such as the Oriental hornbeam and the Persian ironwood, which “offer stunning autumn hues and are well adapted for future climatic conditions.”
Dr. Aaron Davis, head of coffee research at Kew, mentioned that his team aims to assist farmers affected by climate change.
“We’re accomplishing this by introducing alternative coffee varieties that can do well in hotter climates and drought conditions, rather than relying solely on Arabica or Robusta, making cultivation easier for farmers.”
He noted that globally, approximately 100 million people depend on coffee farming for their livelihoods, which is vital for their families.
“It’s about much more than just enjoying a cup of coffee.”
