Mangrove trees are essential in many parts of the world. Having been severely depleted in recent decades, the human race has realized their importance late, as ever. From stabilizing shore lines, and stopping excessive loss of sand into the sea, they also seive much of our pollution out of the water.
Extreme Weather appears to be causing a feedback loop
Extreme weather in the form of floods, cool periods and heatwaves appears to be leading to an increase in the amount of CO2 being emitted because of the extra demand for energy to help with dealing with the effects.