_Ticks that transmit Lyme disease are spreading northward into Sweden and Canada, once too cold for them.
_Giant Humboldt squid have reached waters as far north as British Columbia,
threatening fisheries along much of the western North American coast.
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Environment
Some of the early colonizers including small ephemerals include: Polygala erioptera DC.; Polycarpaea corymbosa (L.) Lamk. ; Gisekia phamacioides L ; Mollugo cerviana (L.) Ser. ; Side ovals Forsk. ; Corchorus tridens L. ; Triumfetta pentandra A. Rick. ; Indigofera essiliflora DC. ; I. linnaei Ali. These plant species have their value as initial colonizer and are not suitable as biomass resource because" their yield potential is very low. These early colonizers provide helpful association for any subsequent plant to come in the succession like Artemisia scoparia Waldst. ; Farsetia hamiltonii Royle. ; Tephrosia purpurea (L.) Pers ; Citrullus colocynthis (L.) Schrad.; Boerhavia diffuse L. and other herbs.
· Biofuels offer clear advantages in terms of greenhouse gas emissions, but do they perform better when we look at all the environmental impacts from a life cycle perspective?
The subject of Climate change has been bandied about now for approximately 20 years. Governments and scientists have studied it; the world has talked about it. Do we really believe in the seriousness of it? Climate change is not a hoax, it is real, and the earth’s climate has been changing for millions of years. Climate change is not a jet plane streaking across the sky but more like a glacier slowly inching its way along. 
Ashwani Kumar,
Departemnt of Botany , University of Rajasthan, Jaipur. 302004.
India
Email. Msku31@yahoo.com Fax. 00 91 141 565905 Phone 00 91 141 651627.
Introduction:
Indian arid zone covers an area of about 0.3 million sq.km.
The state of Rajasthan has total land area of about 3,42,274 Km2 out of which about 96,100 km2 is arid and rest semi arid.
In December an important climate change meeting will take place in Copenhagen, Denmark: The United Nations Climate Change Meeting or the so-called COP15 climate meeting.








