Certification News Today — July 18, 2026

The natural world is full of complexities and interconnected systems, and today's headlines highlight some of the ways in which human activities and environmental factors are intertwined. Wildfires are raging across North America, with smoke from Canadian and Minnesota fires pushing deep into the US and engulfing Washington D.C. in haze. Meanwhile, in Southeast Asia, a new study has found that the region's catastrophic fires have multiple origin points, suggesting that addressing these blazes will require a nuanced understanding of their causes.

In other news, researchers are working to understand the intricate relationships between species, environments, and human history. In the UK, a scientist has identified several mosquito species that could be carrying avian malaria, while on St Helena, tooth enamel analysis is shedding light on the origins of African slaves buried on the island. Additionally, engineers are developing new ways to test the toughness of materials, and globally, efforts to protect soil health are showing measurable gains for farmland. These stories demonstrate the importance of interdisciplinary research and the need for continued exploration and discovery to address the complex challenges facing our world.

Today's signal:
• Wildfire smoke from Canada and Minnesota pushes farther into the US and engulfs DC in haze (phys.org)
• Researcher finds several UK mosquito species are potential carriers of avian malaria (phys.org)
• Multiple origin points drive Southeast Asia's catastrophic fires, study finds (phys.org)
• Tooth enamel reveals the origins of African slaves buried on St Helena (phys.org)
• To learn how tough a material is, engineers find its breaking point (phys.org)
• Global soil protections deliver measurable gains for farmland health (phys.org)