Uncommonly severe droughts brought on by global climate change have led to forest-eating wildfires from Australia to Indonesia, but nowhere more acutely than in the Amazon. Some experts say that the rain forest is already at the brink of collapse.
Extreme weather and reckless development are plotting against the rain forest in ways that scientists have never seen. Trees need more water as temperatures rise, but the prolonged droughts have robbed them of moisture, making whole forests easily cleared of trees and turned into farmland. The picture worsens with each round of El Nino, the unusually warm currents in the Pacific Ocean that drive up temperatures and invariably presage dead leaves and tree debris make the same sound
B) trees that are dying usually give out a soft moan
C) organic debris echoes the sounds in a rain forest
D) the sound of a forest signifies its health condition
58. In the second paragraph, the author challenges the view that _______.
A) the collapse of rain forests is caused by direct human interference
B) carbon emissions are the leading cause of current global warming
C) the condition of rain forests has been rapidly deteriorating
D) rain forests should not be converted into pastures or farms
59. The author argues that the rising carbon levels in rain forests may _______.
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