Canada-Wide Science Fair returns to Edmonton - Global News

As part of US welfare reforms in the 1990s to provide adequate financial support to low-income families while avoiding disincentivizing work, policymakers expanded the Earned Income Tax Credit (EITC). This change encouraged people to work more by giving greater benefits with greater earned income, and single mothers faced stronger incentives to enter the workforce than married mothers. An analysis in Contemporary Economic Policy indicates that the EITC expansion may have had unintended negative effects on the development of single mothers' children. Based on mother–child survey data from 1990–1996, the study found that following the EITC expansion, children of single mothers experienced a decline of 0.14 standard deviations in combined math and reading test scores relative to children of married mothers, as well as a decline of 0.68 standard deviations in early motor and social development among young children, although this latter estimate is based on a smaller sample and should be interpreted with caution.

Snow–Tanner hybrid crab collected during the 2026 eastern Bering Sea bottom trawl survey. Credit: Jon Richar Marine heat waves are usually seen as destructive events that can disrupt entire ocean ecosystems and trigger massive environmental damage. In 2018 and 2019, an extreme heat wave hit the Bering Sea, causing spring sea ice levels to plummet.

Green chemistry co-architect John Warner did not grow up destined to be a chemist. When he was young his passion was music. ‘I wasn’t some child dreaming about pouring beakers and flasks and things like that; I was a musician,’ he recalled during a lecture at the recent autumn conference of the American Chemical Society (ACS) in Chicago. ‘I had no real fundamental exposure to science as a child; it wasn’t something that was in my DNA, so to speak,’ Warner stated.

Insects belong to a broader group of six-legged animals called hexapods. This group also includes other less well-known, small animals, including diplurans or two-pronged bristletails, wingless relatives of insects with two rear projections called cerci that resemble feelers or pincers.