Sea-Level Rise Puts Indo-Pacific Mangrove Forests at Risk

by Grace Stewart

Mangroves provide an array of ecosystem services, from coastal protection to fishery support to carbon sequestration, all of which are at risk in the Indo-Pacific region due to sea-level rise (SLR). SLR can lead to inundation of these habitats and shoreline retreat. Lovelock et al. (2015) analyzed recent trends in mangrove surface elevation, finding that SLR could be combated when sediment availability allowed for soil-surface elevation gain at a rate that exceeded SLR. However, in 69% of the sites studied, SLR rate was exceeding the rate of soil-surface elevation gain. Lovelock et al. also presented a model based on field data that suggests submergence of forests with low tidal range and low sediment supply as early as 2070. Continue reading

More Benefits of Reversing Deforestation than Meet the Eye

by Caroline Chmiel

A seemingly simplistic method to battling rising temperatures may be one of the most effective. Saving tropical forests, largely through natural growth, has proven an immensely important and promising strategy to limit climate change impacts. Saving the forests that are left and allowing new ones to grow, or regrow, will impact our planet in many positive ways. Forests play a huge role in the carbon cycle of Earth because trees pull main greenhouse gases, CO2, out of the air and lock carbon away in wood and in soil beneath them. When forests are destroyed, typically through burning, CO2 is pumped back into the air, substantially contributing to raising temperatures and climate change. Burning of coal, oil and natural gas moves carbon out of the ground and into the active carbon cycle causing the globe to warm more rapidly now than in any similar period. Research displays a hopeful method for the control of CO2 cycle: if forests around the globe are reclaimed and burning comes to a halt, forests will evermore naturally help pull dangerous emissions from the air, preventing quick, out of control, temperature growth. Continue reading