COP27

Leer in español There are questions that worry me profoundly as a population- and environmental-health scientist. Will we have enough food for a growing global population? How will we take care of more people in the next pandemic? What will heat do to millions with hypertension? Will countries wage water wars because of increasing droughts? These risks all have three things in common: health, climate change and a growing population that the United Nations determined passed 8 billion people in November 2022 – double the population of just 48 years ago. In my 40-year career, first working in the Amazon rainforest and the Centers for Disease Control and Prevention, and then in academia, I have encountered many public health threats, but none so intransigent and pervasive as climate change. Of the multitude of climate-related adverse health effects, the following four represent the greatest public health concerns for a growing population. Infectious disease...

In London, youth activists threw soup at Van Gogh’s “Sunflowers,” asking, “Is art worth more than life? More than food? More than justice?” In Melbourne, Australia, two protesters superglued themselves to Picasso’s “Massacre in Korea” to highlight the connections between climate change and future conflict and suffering. Others have engaged in similar protests, targeting a Boticelli at the Uffizi Gallery in Florence, Italy; an ancient Roman statue at the Vatican; a Klimt in Vienna; and a mummy exhibit at Barcelona’s Egyptian Museum. Their actions have incited mixed responses around the world. Some people praised the activists’ daring and ingenuity; others lambasted the groups for polarizing the fight for climate justice, sending mixed messages and using plain poor logic. But tactics like these draw media attention and make a lasting impression, and that’s the point – especially right now....

The world could still, theoretically, meet its goal of keeping global warming under 1.5 degrees Celsius, a level many scientists consider a dangerous threshold. Realistically, that’s unlikely to happen. Part of the problem was evident at COP27, the United Nations climate conference in Egypt. While nations’ climate negotiators were successfully fighting to “keep 1.5 alive” as the global goal in the official agreement, reached Nov. 20, 2022, some of their countries were negotiating new fossil fuel deals, driven in part by the global energy crisis. Any expansion of fossil fuels – the primary driver of climate change – makes keeping warming under 1.5 C (2.7 Fahrenheit) compared to pre-industrial times much harder. Attempts at the climate talks to get all countries to agree to phase out coal, oil, natural gas and all fossil fuel subsidies failed. And countries have done little to strengthen their commitments to cut greenhouse gas emissions in the...

Brazil’s president-elect, Luiz Inácio Lula da Silva, was greeted with applause and cheers when he addressed the U.N. climate conference in Sharm el-Sheikh, Egypt, on Nov. 16, 2022. As he had in his campaign, Lula pledged to stop rampant deforestation in the Amazon, which his predecessor, Jair Bolsanaro, had encouraged. Forests play a critical role in slowing climate change by taking up carbon dioxide, and the Amazon rainforest absorbs one-fourth of the CO2 absorbed by all the land on Earth. These articles from The Conversation’s archive examine stresses on the Amazon and the Indigenous groups who live there. 1. Massive losses The Amazon rainforest is vast, covering some 2.3 million square miles (6 million square kilometers). It extends over eight countries, with about 60% of it in Brazil. And the destruction occurring there is also enormous. From 2010 to 2019, the Amazon lost 24,000 square miles (62,000 square kilometers) of forest – the equivalent of...

Barbados Prime Minister Mia Amor Mottley spoke passionately to the United Nations General Assembly in September about the mounting debt many developing countries are shouldering and its increasing impact on their ability to thrive. The average debt for low- and middle-income countries, excluding China, reached 42% of their gross national income in 2020, up from 26% in 2011. For countries in Latin America and the Caribbean, the annual payments just to service that debt averaged 30% of their total exports. At the same time, these countries are facing a “triple crisis of climate change, of pandemic and indeed now the conflict that is leading to the inflationary pressures that lead regrettably to people taking circumstances into their own hands,” Mottley said. Rising borrowing costs coupled with high inflation and slow economic growth have left developing countries like hers in a difficult position when it comes to climate change. High debt payments mean countries have...