TechnologyAttempt to reach expert consensus on teens and phones ends in argument There are a range of competing views on whether smartphones and social media are harmful to adolescents, and an attempt to settle the debate has instead sparked more disagreement ¿ìè¶ÌÊÓÆµ
EnvironmentCould a $125 billion investment fund halt global deforestation? The Tropical Forests Forever Facility, an initiative spearheaded by Brazil, would raise money from investments and pay countries to preserve forests – can it succeed where carbon markets have failed? Analysis