Our changing climate is doing more than just melting ice; it is directly impacting human health. As global temperatures have risen by about 1 degree Celsius since 1880, we are seeing a measurable shift in how diseases spread. Specifically, the rate of warming has accelerated significantly since 2015, reaching over 0.35 degrees per decade.
This warming creates a dangerous environment for our bodies. It can lead to metabolic imbalances and oxidative stress, which can weaken our immune systems. When our defenses are down, we become more susceptible to infections. Furthermore, warmer temperatures allow insects that carry diseases to move into new areas, increasing the frequency of vector-borne illnesses.
While this review highlights these clear links between a warming planet and risks like cardiovascular and respiratory issues, it is important to note that the evidence comes from a narrative review rather than specific clinical trials. Because climate modeling has its own limitations, experts suggest we need proactive policies and better education to prepare for these growing health challenges.
