the simultaneous accumulation of Nitrogen and Oxygen

in the atmosphere and draw down of CO

from the atmosphere to the

oceans.

the simultaneous accumulation of Oxygen in the

atmosphere, draw down of CO

from the atmosphere and final burial of

organic carbon in the marine sediments.

in the atmosphere and burial of the organic carbon in the marine sediments.

in the atmosphere and final burial of organic carbon in the marine sediments.

Troposphere

– stratosphere – Mesosphere - Ionosphere

Mesosphere

– stratosphere – Ionosphere - Troposphere

Mesosphere

– stratosphere – Troposphere - Ionosphere

roposphere

– stratosphere – Ionosphere - Mesosphere

,

N

Various summits/conferences and mitigation

measures decided, strategies implemented, etc were all actually not successful

about decreasing global warming.

Sun light reaches the earth as long wave length

radiations  (10

m ) and a portion of

that is reflected back as short wave length radiations (0.58 to 0.69

Although water vapour can cause global warming,

it is not usually accounted in the

global warming calculations for fixing up the responsibilities.

They predicted the accumulation of the CFCs in

the stratosphere and the probability of the depletion of the ozone layer there.

They could estimate, for the first time, the

global warming effect of HFCs and HCFCs.

They predicted, for the first time, about the forthcoming

global warming and its adverse effects on humans and the environment.

They invented alternatives for the CFCs that

will not reach the stratosphere due to the presence of H atoms.

About 26 million years ago, an asteroid of size about

10 km hit Lonar in Maharashtra and wiped off large creatures like dinosaurs.

A 200 feet wide asteroid exploded above Tunguska

(Siberia) destroying about 700 km

wiping out large creatures like

dinosaurs.

About 65 million years ago, a 5 mile wide

asteroid hit the earth in the Yucatan Peninsula wiping out about 75% of life

forms including Dinosaurs

Most severe killing took place about 200 million

years ago. More than 95% of life forms, including dinosaurs, was wiped away.

Increase

in the productivity of plants following C

photosynthesis like rice,

wheat, etc.

Increased

rainfall due to the increased evaporation at higher temperatures.

Increased ocean productivity due to the higher

temperatures

photosynthesis like weeds is hindered.