Question

How is the earth changing and what are the consequences for life on earth?

Answer 1

climate change is supported by six key concepts:

a. Melting of ice sheets and glaciers, combined with the thermal expansion of seawater as the oceans warm, is causing sea level to rise. Seawater is beginning to move onto low-lyiour climate is changing and so is our world. Symptoms of climate change are all around us: extreme weather, diminishing sea ice, year after year of record-breaking warmth, drought, fires, and stress to ecosystems. Many of these consequences will create hardship for humans. Some key points are:

The impacts of human-caused climate change are already being seen, from polar regions, to our backyards, to communities around the world.

Consequences of climate change will affect the biosphere on many levels, from coral bleaching, to dying forests, to species extinction.

Human infrastructure is threatened by a changing climate, such as encroachment of coastlines, stress to the energy grid, and shifting structures as a result of melting permafrost.

A warming climate threatens mountain snowpacks, fresh water supplies, and hydropower that serve millions of people.

Changes in climate and precipitation patterns are impacting agriculture and food security.

Populations that are already vulnerable in terms of sea level rise and food security are poised for the greatest hardships. Political unrest, migration of refugees, and global economic impacts are all visible outcomes. Some of these effects are already evident.