Around the sun leaving a bright trail behind. For more than

entirely	tamamen.	receive
almak; kabul etmek
excuse	affetmek,mazur görmek, göz yummak	reduce	azaltmak, indirmek
explore	arastirmak keşfetmek dikkatle incelemek.	residential	Ikamet edilen
figure	biçim, sekil,	slow down	hızını eksiltmek
gap	aralık bosluk	temporary	Geçici
give up	vazgeçmek, birakmak	tend to	E istekli olmak
hardly	hemen hemen hiç	the other way round	tam aksi, tam tersine
		trick	hile, oyun,
		Whatever	bütünü, hepsi her ne

35 CHANGES IN WORLD CLIMATE

Although the weathermen’s forecasts for a month ahead are only a little better than guesswork, they are now making long-term forecasts into the next century with growing confidence. For the dominant trend in the world's climate in the coming decades will, scientists say, be a predictable result of man's activities.

At the start of the industrial revolution nearly two centuries ago, man innocently set off a gigantic experiment in planetary engineering. Unaware of what he was doing, he spared no thought for the consequences. Today, the possible outcome is alarmingly clear, but the experiment is unstoppable. Within the lifetimes of many of us, the earth may become warmer than it has been for a thousand years. By the middle of the next century, it may be warmer than it has been since before the last Ice Age. And the century after that may be hotter than any in the past 70 million years.

Superficially, a warmer climate may seem welcome. But it could bring many hazards - disruption of crops in the world's main food-producing regions, famine, economic instability, civil unrest and even war.

In the much longer term, melting of the great ice-caps of Greenland and Antartica could raise sea-levels throughout the world. The average sea-level has already risen a foot since the turn of the century, and if the ice-caps disappear entirely, it would rise by nearly 200 feet. Complete melting might take many centuries, but even a small increase in sea-level would threaten low-lying parts of the world such as the Netherlands.

The man-made agent of climatic change is the carbon dioxide that has been pouring out of the world's chimneys in ever-increasing quantities since the industrial revolution began. And in the past few years, scientists have begun to suspect that there is a second man-made source of carbon dioxide which may be as important as the burning of fossil fuels, namely the steady destruction of the world's great forests. Trees and other vegetation represent a huge stock of carbon removed from circulation like money in a bank. As the vast tropical forests are cut down, most of the carbon they contain finds its way back into the atmosphere as carbon dioxide.

The amount of C0₂ (carbon dioxide) in the atmosphere is still tiny. But it has climatic effects out of all proportion to its concentration. It acts rather like the glass in a greenhouse, letting through short-wave radiation from the sun, but trapping the longer-wave radiation by which the earth loses heat to outer space.

Computer studies have suggested that if the concentration of carbon dioxide in the atmosphere were to be twice that of today's, there would be a rise of between 2⁰C and 3⁰C in average temperature.

activity	hareket, faaliyet	proportion	oran
ahead	önde, önden, ileri dogru, ileriye; önde, ilerde; gelecekte, ileride, ileriki	radiation	Işıma radyasyon
alarmingly	korkunç derecede	raise	yükseltmek(
chimney	baca	removed from	den uzak, -den farkli, ile ilgisiz
clear	Açık temiz temizlemek	represent	gösterimlemek, temsil etmek
climatic change	iklim degisimi	rise	yukarı çıkmak, yükselmek
cut down	kesip düsürmek, devirmek; azaltmak	set off	yola çıkmak.
dominant	baskın	short-wave	kisa dalga
economic instability	ekonomik istikrarsizlik	since before
foot	ayak	source	kaynak
forecasts	tahminler	steady	kararlı, dengeli
gigantic	devasa, kocaman	Superficially	görünüşte
guesswork	tahmine dayanan sonuç	suspect	şüphelenmek, kuşkulanmak
hazard	tehlike,	threaten	tehdit etmek,
icecap	buzul.	trap	yakalamak
innocently	masumca, saflıkla	trend	eğilim.
lifetime	yaşam süresi, ömür	Unaware of	-den habersiz
low-lying	deniz seviyesinden yüksek olmayan	unrest	huzursuzluk, kargaşa; rahatsızlık
outcome	sonuç.	vast	Geniş, büyük
pour	akıtmak, boşaltmak	vegetation	bitkiler, yeşillik

36

VENOM THERAPY

The stings of bees, wasps, hornets and yellow jackets can have life-threatening, sometimes fatal, results in minutes - even in persons who have been stung previously without suffering more than pain, redness, and swelling. Fatal reactions probably are more common than once thought. It was discovered, for example, that some deaths caused by heart attacks at tennis courts, golf courses, or pools were in fact the result of insect stings.