This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Why is it difficult to determine accurately the long-term temperature trend? What will be an ... (Read 51 times)

RYAN BANYAN

  • Hero Member
  • *****
  • Posts: 563
on: Jul 14, 2018
Why is it difficult to determine accurately the long-term temperature trend?
 
  What will be an ideal response?

Question 2

How might the burning of coal have had opposing effects on climate during the 20th century?
 
  What will be an ideal response?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

tennis14576

  • Sr. Member
  • ****
  • Posts: 334
Reply #1 on: Jul 14, 2018
Answer to Question 1

Problems exist with historical temperature data. For instance:
Location of stations: Stations located in cities are subject to a heat island effect that causes local temperatures to increase with time.
Coverage in time and space: Some parts of the world have more coverage than the others. There is very little coverage, for example, in the southern oceans.

Answer to Question 2

Burning of coal adds CO2 to the atmosphere and hence warms the surface by increasing the greenhouse effect. However, one possible explanation for the 1940 to 1970 cooling trend is that it was caused by increased reflection of sunlight by sulfate aerosol particles. These tiny airborne particles are formed from sulfur dioxide (SO2) emitted by the burning of coal.


RYAN BANYAN

  • Member
  • Posts: 563
Reply 2 on: Jul 14, 2018
Great answer, keep it coming :)

31809pancho

  • Member
  • Posts: 317
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

Anesthesia awareness is a potentially disturbing adverse effect wherein patients who have been paralyzed with muscle relaxants may awaken. They may be aware of their surroundings but unable to communicate or move. Neurologic monitoring equipment that helps to more closely check the patient's anesthesia stages is now available to avoid the occurrence of anesthesia awareness.

Did you know?

Cucumber slices relieve headaches by tightening blood vessels, reducing blood flow to the area, and relieving pressure.

Did you know?

Chronic marijuana use can damage the white blood cells and reduce the immune system's ability to respond to disease by as much as 40%. Without a strong immune system, the body is vulnerable to all kinds of degenerative and infectious diseases.

Did you know?

In the United States, congenital cytomegalovirus causes one child to become disabled almost every hour. CMV is the leading preventable viral cause of development disability in newborns. These disabilities include hearing or vision loss, and cerebral palsy.

Did you know?

In 1864, the first barbiturate (barbituric acid) was synthesized.

Enzyme activity is affected substantially by temperature Enzyme activity is affected substantially by temperature
Role of PKM-zeta in Long-Lasting Long-Term Potentiation Role of PKM-zeta in Long-Lasting Long-Term Potentiation
Amniocentesis. The patient is examined with ultrasound to determine the placental site and to locate ... Amniocentesis. The patient is examined with ultrasound to determine the placental site and to locate ...
It is difficult to capture the anguish of the children of divorce, but when I read these lines by ... It is difficult to capture the anguish of the children of divorce, but when I read these lines by ...
The opening of the throttle plate can be delayed as long as 30 milliseconds (0.030 sec) to allow ... The opening of the throttle plate can be delayed as long as 30 milliseconds (0.030 sec) to allow ...
Use of forward and reverse genetics to determine gene function Use of forward and reverse genetics to determine gene function
Video: Proteins

For a complete list of videos, visit our video library