Heat is a well-documented threat to health. According to the World Health Organization, nearly 500,000 people die from heat-related causes each year — a number expected to rise by 50% by 2050. But the ...

In densely urbanized Hong Kong, transport is the second largest source of greenhouse gas emissions, at 18%. Vehicle traffic is also a major source of toxic air pollutants like NOx, volatile organic ...

Rafaela Aires’s workday starts at 9:00 a.m., leading her down city streets that weave past the Atlantic shoreline and under concrete overpasses. Her collected bottles and cardboard boxes used to form ...