The threat of the deforestation
Logging on a too big
scale causes in many countries soil erosion.
Especially in countries
like the Philippines where the landscapes are mountainous,
the rivers
will take the soil to the coastal waters. The water will become more
and
more dark
coloured. It will prevent sunlight to
penetrate deep enough into the water. Sunlight is vital for coral
growth. Moreover, the silt will fall down on the top of the
corals and smother the reefs.