the threat of global warming is mainly associated with ?

1 radioactive wastes
2 use of hydroelectric energy
3 burning of fossil fuels
4 thermal pollution of lakes and rivers

I'll be glad to check your answer.

2 or 3 >????? -_-

Hydroelectric energy is water power. It has nothing to do with global warming.

Nope.

Please read your book.

http://www.usatoday.com/tech/science/2007-01-30-ipcc-report_x.htm

- thanksss . ^_______^

You're welcome.

The threat of global warming is mainly associated with the burning of fossil fuels. To understand why this is the case, we need to look at the process of global warming and how it is linked to fossil fuel usage.

Global warming refers to the long-term increase in Earth's average surface temperature, primarily caused by the buildup of greenhouse gases in the atmosphere. These gases act like a blanket, trapping heat from the sun and preventing it from escaping back into space. This phenomenon is commonly referred to as the greenhouse effect.

Fossil fuels, such as coal, oil, and natural gas, are the main sources of energy that power various sectors of our modern society, including transportation, electricity generation, and industrial processes. When burnt for energy, fossil fuels release carbon dioxide (CO2) into the atmosphere as a byproduct. Carbon dioxide is a potent greenhouse gas that contributes significantly to the greenhouse effect.

The increased levels of CO2 in the atmosphere due to fossil fuel combustion have led to a dramatic rise in global temperatures over the past century. This rise in temperatures has a range of negative consequences, referred to as the impacts of climate change, including:

1. Melting of ice caps and glaciers: The warming temperatures cause ice to melt, leading to rising sea levels and increased risks of coastal flooding.

2. Extreme weather events: Global warming can intensify hurricanes, tornadoes, droughts, heatwaves, and heavy rainfall events, resulting in more frequent and severe weather disasters.

3. Changes in ecosystems: Many species are struggling to adapt to the rapidly changing climate, affecting the delicate balance of ecosystems. This can lead to the extinction or migration of certain species and disrupt the overall functioning of ecosystems.

4. Negative impacts on human health: Global warming can have detrimental effects on human health, including higher rates of heat-stress-related illnesses, the spread of infectious diseases, and increased respiratory problems due to air pollution.

While other factors like radioactive wastes, hydroelectric energy, and thermal pollution of lakes and rivers can have environmental consequences, the burning of fossil fuels has the largest impact on global warming. Reducing our reliance on fossil fuels and transitioning to cleaner and renewable sources of energy is crucial in mitigating the threat of global warming and reducing its impacts.

i think its number 4 .