EnvironmentSetting fire to a million acres of California could cut smoke by half As California expands its prescribed burning efforts, a study of more than 180 such projects suggests they are an effective way to reduce a blaze's intensity and smoke 51¶¯Âþ
HealthWhy sleep quality is so important – and so difficult to measure Sleeping a solid 8 hours isn't the whole story and the quality of your sleep might matter more. But what does sleep quality mean and how can we measure it? Features