Generally,
impacts on public health will be more negative than positive.
[174] Impacts include the direct effects of extreme weather, leading to injury and loss of life;
[175] and indirect effects, such as
undernutrition brought on by
crop failures.
[176] Temperature rise has been connected to increased numbers of suicides.
[177] Climate change has been linked to an increase in violent conflict by amplifying poverty and economic shocks, which are well-documented drivers of these conflicts.
[178] Links have been made between a wide range of violent behaviour including fist fights,
violent crimes,
civil unrest, and
wars.
[179] Climate change may also lead to new human diseases. For example, while ordinary temperatures usually kill off the yeast
Candida auris before it infects humans, three strains have recently appeared in widely separate regions, leading researchers to postulate that warmer temperatures are driving it to adapt to higher temperatures at which it can more readily infect humans.
[180]