The scientists, governments, communities and organizations are clearing agreeing that climate change is happening and is obviously caused by human activities. Though, a small section is raising questions against the validity of such assertions. They are casting doubts on the preponderance of evidence. The deniers are suggesting that the recent changes are nothing but the part of natural variations in Earth’s climate and temperature. They are claiming that there is no direct connection between climate change and any single weather event, such as a hurricane.
With the advancements in the field of technology, the scientists are able to see the big picture that is they are collecting many different types of information about our planet and its climate on a global scale. The collected data over many years, reveals the significant climate change.
What does the term “Climate Change” mean? Is climate change already dangerous? Are greenhouse gas levels already too high? Climate change refers to increase in average surface temperatures on Earth. An overwhelming scientific consensus maintains that climate change is due primarily to the human use of fossil fuels. The burning of the fossil fuel to derive vehicles, machinery or in factories releases carbon dioxide and other greenhouse gases into the air. These gases trap heat within the atmosphere, which can have a range of effects on ecosystems.
Evidences indicating Climate Change
Global temperature rise
It is scientifically proven that the average surface temperature of the planet has risen about 2.0 degrees Fahrenheit (1.1 degrees Celsius) since the late 19th century. This change is driven largely by increased carbon dioxide and other human-made emissions into the atmosphere. The research is indicating that the main source of carbon emission is burning of the fossil fuel. 2017 was among the top three hottest years due to global warming.
The warming of the oceans is another indication of climate change. Scientific research is claiming that 90 percent of the excess heat trapped by greenhouse gas emissions has been absorbed into the oceans that cover two-thirds of the planet’s surface. The increase in the temperature of oceans is adversely influencing the aquatic life, thus, disturbing the diversity of the planet. Some of the species are unable to withstand this temperature variation and are on the verge of extinction. The warming ocean temperatures are associated with severe and more frequent storms.
Rising Sea Level
With significant increase in planet’s temperature, the polar ice caps are melting. These are contributing significantly towards rise in sea level. In case of severe weather events, this would leads to flooding and other damage.
The emission of carbon dioxide due to the burning of the fossil fuel is resulting in the acidification of ocean. The oceans absorb a substantial proportion of the CO2 emitted into the atmosphere by human activities. Research is indicating that acidic environment has a dramatic effect on some calcifying species. It is claiming that when shelled organisms are at risk, the entire food web may also be at risk.
There is no iota of doubt that climate change is a reality and is adversely influencing the ecological balance of the planet. It’s time for the human race to act swiftly against this problem otherwise things will get worse.