What are the some reasons for global warming?

Answer 1

First of all, we know that climate scientists believe that global warming is real and that it is caused principally by human activity. In a poll of scientists in different fields conducted by Doran and Kendall Zimmerman in 2009, 97 per cent of those who published at least half of their peer-reviewed research in the climate field agreed that human activity was significant in changing global temperature. Anderegg et al., in 2010, similarly found that 97% of actively publishing climate scientists went along with the international panels' consensus.

Scientists base that belief on very strong data. 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.

Answer 2

We know that global warming is real because: i) actual temperature measurements around the world since 1850 show it to be real; ii) The past decade was the warmest since instrumental measurement began; iii) sea levels are rising as a result of melting glaciers and ice caps, and warmer water expanding, which can only occur because the world is becoming warmer.

Answer 3

Seriously. Science is not a belief system. You cannot spin opinion with the facts provided; the world is warming. Every single satellite tells us that. Not only is the world warming its warming a thousand times faster than it did in the Mesozoic. Here you are asking if global warming is real. The polar ice caps are melting, right? Birds sing earlier every year.

What is there not to accept?

Answer 4

Because humans can't take care of the planet.

The primary reason for current trends in global warming is the release of 30 billion tons of CO2 into the atmosphere each year from fossil sources where it had been long sequestered.

The manufacture of cement also releases quite a bit of CO2, perhaps as much as 2% of what is released by burning coal and oil.

Deforestation of tropical regions is a third factor in bumping up CO2 levels.

Answer 5

Because, humans don't recycle, and we pollute the air every day.