New-York tribune., 1901-07-29
CHANGES IN THE WEATucn
SOME THEORIES ADVANCED To
PLAIN THE SEEMING INCREASE
HEAT AND DECREASE OF corn

The hot weather of last summer ,-,
warmer weather Of the last month hav. .ne stl
TO wondering if a. gradual change has People
been coming even tie climatic csra,.,ou 90 ysa-s
part of the country Where. too, it is ss,ss MS
the old fashioned winters, wher sla-ssN ars
tinued for weeks un un:uterruptedy ana -. eo7~
quently crossed the East River on the tsss 're~
Many theories have been advanced reg,r..-
seeming change in the Eastern ciir,q.s NE
fuence of sun spots. the course Of the Cur. ID
and the destruction "f forests have each r.
turn been suggested 5 possible exnla,a.s :" taes
Daniel Draper. when asked about this $50. u
week. expressed himself as sceptcaI -a,,-1s asc
real change in the climate There v-ara any
tions. he SAID. but the working ~ ra- S'aa-
change if going on az al. was 81 slos- ''--Asa'
the thirty-three years in which ohservar;ors "a
been made no permanent change saa z.I nsd
marked. The fluctuations came in - re-
groups of years. nd were governed nv 'as
parent laws. ' ap-
The destruction Of forests. DR. Drapar 49,.
has not changed the rainfall and there,ors -
not affect the climate Nor are the sun 80
accountable for changes in Temperatures hs ,,ss,
In India ne said. \ attempt had been n,ass -
work out theory in regard to sun spo,s s-'. %
present. though the laws obtained u7i,h, - q,
for India. they could apply TO thu ra., So
world. Theoretically, they ought TO hold soos Us
where. To formulate satisfactory laws IN ,ha -
ject OF climatic changes observstiors sv...,1 80
through many years would he necessary ar5 -.
observations must not be confined. IS f1rn,s-T,
isolated places but extend over large tracrs ="
The disappearance OF the old fashf,,.s -,
Draper denies He points to the far,ouz hl-,.s. .
1885 OF the heaviest snowfalls ever k, -
this city People he said might still occav,o,.rA -
cross 10 Staten Island on an Ice lam az c..
Washington did in Revolutionary davs - H. -
tinuous shipping did not keep the harbor onse ~, IL
they might srin go about in sIeighs for nsn sne
weeks at time through sheer ueressf+v- ..s.i
means or loc0mctton had not been co1frfva5 r
Hevers in the old fashioned winter tool eI5 a.
stances of intense cold that Impressed .ta- ID.
the time and later exaggerated the frno-ss1laa la s
them. ee OF
On the question OF the old fashioned vy+,..- q,
q Dunn differs from DR.. Draper. Mr Dunn hod.
that the seasons were formerly better defined s 5s
now: the winters stsadier in cold and The sI,r Id
with feWer sudden contrasts in tenr-eTafrrs
the average temperatures Of the less blzn5sss
about the same aS the average tsunperatures ~ a.
present Neither the direction OF the fSTIf s--as -
nor the destruction Of the forests srrikss Wr 1,
as a possible explanation OF the Change si-c.
Gulf Stream has no effect wha tsoever On ,s,s
climate is his contention. The heat NJ fo-..a
TOO, can no more modify cold wave than the bss..
OF great city. S Heat
The explanation that Mr. Dunn thinks pIaus,,,,
lies In the great extension OF irrigation thror.s
the West in the last twenty-five years FOR ~.
eendIng OF the seasons has been noticed from ths
Atlantic seacoaSt TO the Rocky Mountains Thsr.
are now from 5e00o9 70 200 600 acres in the wee
under artificial irrigation. This great area az Ir,
gated land creates moisture and tendency IN N.
development of low pressure storms. In Mr. T;rnr.s
opinion, therefore the great extension Of frrv,
tion in the West may be one cause of anv chsSTa
now noticeable.
If. then. as seems generally agreed the avs-,,
the thirtythTee years of Observation tbers i- ~
reason to fear steady increase in the heat here