Feature

  1. Climate

    Year in Review: Carbon dioxide levels pass milestone

    Although scientists are confident about humankind’s role in climate change, they still have a lot to learn about the magnitude and timing of future climate shifts.

    By Erin Wayman
  2. Genetics

    Year in Review: Caffeine triggers cloning advance

    To successfully clone human cells, eggs must be dunked in the stimulant.

    By Meghan Rosen
  3. Humans

    Year in Review: Language learning starts before birth

    Babies seem familiar with vowels and words heard while in the womb.

    By Laura Sanders
  4. Science & Society

    Year in Review: High court rules against gene patents

    The justices’ decision opens the way for choices in DNA testing.