Amphibians? The Health Meter?

As shown in the past, amphibians usually survive depending on how well the economy is doing. When nature is healthy, the amphibians are usually flourishing in the wild. When the economy is dying, the amphibians in areas seem to die off also. As the world moves on, amphibians are dying off. Is this a sign that our world is killing many of its species and we may be suffering in the years to come? I believe that its true. If amphibians have been the meters for how well our animals and wildlife are doing in the past, then obviously why not take them as the health meter now. If our generation wants to keep the species it has now, things must change.