Why is climate change a concern?

Answer 1

Climate change will change everything for the worse.

• Rising temperatures
• Rising sea levels, flooding cities and croplands with salt water
• Animal and human habitat destruction. Occupants move, adapt or die.
• Extreme weather events, storms, blizzards, heat waves, droughts, rains.
• Refugees seeking lands to grow their food.
• Refugees seeking water after their rivers have dried up.

This is why it is important to act NOW to stop it.

We have to:

• change to renewable energy, water, wind and sun
• stop burning fossil fuel (coal, oil and gas) which is causing global warming and climate change.
• Plant millions of trees to replace the ones we have destroyed (trees remove carbon dioxide from the atmosphere).

Answer 2

Average temperatures are definitely getting warmer, especially in summer, although there appears to be some seasonal, localised cooling in winter. The year 2010 had the warmest global average temperature on record, fractionally warmer than 2005 and 1998, but as the difference is slight, the three years are regarded as the equal hottest. The past decade was the warmest since instrumental measurement began in 1850, and the ten warmest years since 1850 have now all occurred since 1998.

There has been more violent storm activity, with New Zealand actually experiencing a tornado in its main city, an unprecedented event. The year 1911 experienced flood of such magnitude in some areas that millions were displaced, in regions as far separated as Pakistan, China and Australia. Yet prolonged droughts seems to be a threat in other places. While no single event can be directly attributed to climate change, these events, as a whole, are what climate scientists have predicted, and predictions are for these problems to become worse and more frequent.

Climate change is an issue because it does not have to be. Scientists have demonstrated that recent global warming and climate change are caused by human activity, so it is incumbent on humans to make the changes necessary to prevent continued global warming. This means that we must dramatically reduce our greenhouse gas emissions; not this year in particular, but soon.

Those of us who are past childhood and early adulthood probably have less to fear from the consequences of global warming, so we do not have to think of climate change as an issue for us and can focus on the short-term economic advantages of doing nothing. This is why the higher forecasts for global warming and its effects are probably more realistic. We should therefore expect significant rises in sea levels, which along with increased storm surges will result in inundation of important coastal regions and even the displacement of entire populations. There is a real possibility that arctic Siberia could warm to the extent of melting the tundra, which sequesters enormous amounts of carbon in frozen vegetation. Once this melts it will rot, emitting enough carbon dioxide to lead to uncontrolled, runaway global warming. If this ever happens, as well it might, humans wil be entirely unable to prevent catastrophic changes.

Answer 3

CLimate change is part of global warming. If the earth continues to heat up, the glaciers and ice in Antarctica and the Arctic will continue to melt. This will cause the sea level to rise. If the climate changes, it can affect plant growth and crops. The growth patterns of plants and crops will change, and some might stop growing altogether. Some of these plants might be staple foods of certain animals. If they cannot adapt to more foods quickly, they will die off, and this will disrupt the food chain. The animal that died off would've been a source of food for another animal, and that animal might become fewer in number, too, and so on. Not to mention humans, too. There could be more droughts, flood, hurricanes, tornadoes, etc, with the changing climate, too. All in all, it's pretty disastrous, and that's why many people are concerned.

A:Although some people refuse to believe there is such a thing as climate change, there is no doubt that the way we live in the 21st century is profligate with energy. We would need several planets if the whole world produced carbon footprints like the developed countries.

It is sad but true that the changing weather patterns are affecting the poorer countries more than us. Floods to us are a rare occurrence; to parts of the developing world, they are becoming a common disaster. With drought, the deserts are spreading bringing more famine to parts of Africa where life is already marginal.

It may not affect you in your lifetime much, but what would be your answer to your grandchildren when you knew there were things you could have done to reduce climate change, but you didn't do a thing. It will affect them.

Answer 4

Because otherwise if we don't do anything about it people, plants and animals in the world will die.