Discussion of climate, how it is changing, activism around that, the politics, and the energy systems change we need in order to stabilize things.
As a starting point, the burning of fossil fuels, and to a lesser extent deforestation and release of methane are responsible for the warming in recent decades:
How much each change to the atmosphere has warmed the world:
Recommended actions to cut greenhouse gas emissions in the near future:
Anti-science, inactivism, and unsupported conspiracy theories are not ok here.
Not to mention that on a global scale, extreme heat is a contributing factor to hurricanes, floods, and tornadoes
... and drought, famine, and wildfires
And yet another problem that disproportionately affects poor people, I guess
Wet bulb events are no joke
In short: yes.
Even fairly far north where I live (Estonia), a summer heatwave that reached ~35 C (humid air) caused a bump on the mortality graph. Of course, it was small compared to mountain made by spring COVID, but it was visible - no other weather events give visible mortality here.
When the 2003 European heat wave hit France, excess mortality was 1600 people per day - more than both sides are suffering in the war in Ukraine.
The total per all of Europe was estimated at 70 000 people.