No change in forcing is required to get major and persistent changes in behaviour. (judithcurry.com)
Climate change may be due to natural internal processes or external factors such as persistent changes to the atmosphere or changes in land use. (wmo.int)
McLean Hospital neuroscientists have found that even a brief episode of immune system activation within days of birth can cause persistent changes in sleep patterns concurrent with increases in epilepsy - like brain activity — a combination of symptoms common in autism spectrum disorder (ASD) and other developmental conditions. (sciencedaily.com)